Const Vs Var


No description. I would guess the writter of the code is trying to improve performance by making it static. However, wouldn't const actually create a variable in RAM on some platforms, while a #define will simply put the data in ROM? If I use const to replace #define would I use alot more RAM? Thanks. The modifier can be used on var properties declared inside the body of a class (not in the primary constructor, and only when the property does not have a custom getter or setter) and, since Kotlin 1. Changing a variable to a property is a breaking change. Energy Efficiency. Here is how I currently understand constant speed and variable pitch propellers. I have a question: Is there a chip that supports variable sampling rate? Specifically, if the analog signal varies in frequency, why don't converters vary in sampling rate to meet the optimum sampling frequency at all. Introduce a surplus variable and an artificial variable in each ≥constraint. Effectively, this implies that a constant pointer is pointing to a constant value. lack of Canadian work experience and variable recognition. Reflection works differently on variables vs. Constant vs Variable Bit Rate in Ogg Vorbis Post by Terrill » Sun Jan 25, 2015 4:27 pm I'm using Audacity 2. constant bit rate is (like it sounds) a constant bit rate throughout the song. const keyword is almost the same as let keyword except only one difference. Given the above, const makes code easier to read: within its scope, a const variable always refers to. You can use READ_ONLY for const values that are meant as constant variables. The accessibility or the scope of a variable refers to where the variable can be read from or written to, and its lifetime, or how long it stays in the computer memory. x as well: Global vs. The value of a variable can change depending on the equation, while the value of a constant always remains the same. In economics, variable cost and fixed cost are the two main costs a company has when producing goods and services. Am I oversimplifying or what?. In vanilla JavaScript, variables are declared using ‘var‘ keyword. benefits of constant bit rate versus variable? - The Creative Cow DVD Authoring forum is for the discussion of issues related to DVD authoring, design and distribution. Modules and functions are the best example of const variables:. If the variable is an int, & returns an int*. const_cast makes it possible to form a reference or pointer to non-const type that is actually referring to a const object or a reference or pointer to non-volatile type that is actually referring to a volatile object. Just use constant and enable Decomb then select Default, as for framerate changing in film or videoI've never heard of that. Variables represent all. A live demo that shows the difference between var and let is shown below and is also available at JSBin:. Array Constant Hi sheetspread, that works too, I didn't think of the COUNTIF! Though, I should have specified that I was trying to write a formula that uses only the SUMPRODUCT function, but I'm not sure if it is possible. Effectively, this implies that a constant pointer is pointing to a constant value. В тази публикация ще научите два нови начина за създаване на променливи в JavaScript (ES6), нека и const. This constant will function just like any other instance variable with one main exception… we've made the value final. Covers topics like variable declaration, integer constants, floating point constants, character constant, constants declaration etc. Both reactors start at the same initial conditions, but one is at constant volume and the other is at constant pressure. Using explicit type. Constant Torque vs. For example, the SSL E Series EQ reduces Q as you increase a band’s level, so the bandwidth remains constant at different gain settings. Team Treehouse's workshop on defining variables with let and const is very helpful with regards to their usage. The constant pointer to a variable is useful where you want a storage that can be changed in value but not moved in memory. You can't databind against a variable. Introduce a surplus variable and an artificial variable in each ≥constraint. They are given here if you are interested): This new state space system is quite different from the original one, and it is not at all obvious that they represent the same system. When using JavaScript within IE and setting global constants you cannot use const but rather you must use var otherwise it will not operate correctly across all browsers. 8 lens, the sweet spot would be F5. In the last post we learned all about how scoping works with JavaScript let, const and var variables. Vectors (and other containers: list, map, etc. Unlike variables, constants must be initialized at the same time that they are declared and must be prefixed with the const keyword: const int interestRate = 10; Note that a constant, unlike a variable, must be initialized at the point that it is declared. The variables are greater than that. Chapter 4 Variances and covariances Page 3 A pair of random variables X and Y is said to be uncorrelated if cov. Independent and dependent variables are the two most important variables to know and understand when conducting or studying an experiment, but there is one other type of variable that you should be aware of: constant variables. Hi, Can anyone help me to figure out how to chose between this two Variable specific heat & constant specific heat? I know it's a silly question. A binding is the runtime manifestation of a variable. Energy Efficiency. online store of Polyspede Electronics Corporation. There were several concerns we discussed about this project. An Example Program. There were constants, such as death, and variables, such as people. When the decline rate, D, is constant, the production is said to follow an exponential decline. However, the flexibility of untyped constants means we can initialize unsigned integer variables using simple constants as long as we are clear about the type. Now, as an aside, FUN_FACTOR is a crappy variable name. These insights are critical in. No multiple declaration. A global static variable is one that can only be accessed in the file where it is created. Since bandwidth consumption with constant bit rates does not vary, the file size is limited and more predictable than with variable bit rates. Multiple Linear Regression Analysis. Therefore, since the uniform density is constant and inversely proportional to the length of the support, the second random variable has a. time you will be able to determine the. So can we immitate this in Java, and if so, how? Well, the answer depends on the type of variable— primitive or object— and on what you want to make constant— the object contents or the "pointer" (reference in Java). 3 things we learned. hiPSC aggregates frozen in the optimized solution did not exhibit the same sensitivity to undercooling as those frozen in non-optimized solutions or DMSO, indicating superior adaptability of the optimized solution to. Even if Typescript is a superset of ES6 and ES5, that doesn`t prevent it from checking assignments to a constant variable, does it? Even if it compiles to ES5 target, it can still check for this in TS and compile away the const when targetting ES5. The only difference between const and let is that const makes the contract that no rebinding will happen. /avarage bitrate etc. When associated with an identifier, a constant is said to be "named," although the terms "constant" and "named constant" are often used interchangeably. ECMAScript 2015 introduced the let and const keywords as alternatives to var, which JavaScript has always had. The examples above should show you that let is more powerful, while still allowing almost all of the flexibility of var. Introduction. It depends on the context. I was reading a bash script someone made and I noticed that the author doesn't use eval to evaluate a variable as a command The author used bash -c "$1" instead of eval "$1" I assume using eva. const float FUN_FACTOR = 1; Now, as an aside, FUN_FACTOR is a crappy variable name. Enum Variable Type. What follows is entirely subjective, but bear with me. With the SuperFlo VS pump, you can enjoy big savings on your utility bill. Variable rate springs are great they ride real nice usually softer than stock for the first 1" TO 1-1/2"of travel then stiffen 20 to 25% more than OEM under load. If a variable won’t be reassigned I use ‘const’ If a variable may be reassigned I use ‘let’ If someone points a gun at my head and I have no other choice, I use ‘var’. It's analogous to how we can initialize a float64 using a complex number with zero imaginary part. Just finished watching the video where Andrew uses const to create variables in an array vs. Multiple linear regression analysis is an extension of simple linear regression analysis, used to assess the association between two or more independent variables and a single continuous dependent variable. cl" file, I need to declare and initialize some constant variables. However, former pet and entertainment chimpanzees have received little attention to date. ) 2-stage non variable speed would seem to have less problems. Constant and Variable Declaration. I hope that by this time, if you didn't understand before, you understand block-scoping vs functional-scoping with regards to let, const, and var. The simplest of all types of real-valued functions are the constant functions. Instance Variable: What’s the Difference? A Python class attribute is an attribute of the class (circular, I know), rather than an attribute of an instance of a class. Variable tapers minimize the engagement of the file against the canal wall. As per constant type variable nature - when i change the value of Constant and recompile the project but don't recompile the project which is consuming the constants , it refers to the old value of constant variable. An example will clarify the difference even better Example of var:. ES2015 (or ES6) introduced two new ways to create variables, let and const. Visual Basic variables are assigned names by the programmer when they are declared so that they can easily be referenced in other places in the application code. Another name for it is constant percentage decline. Green Bay, and the Chiefs have a weak run defense. Good design demands compromise. This post will clarify some things, hopefully for other people too. Just declare and assign a value, it simply works, so why is there a need for the distinction of let and const? To fully understand that, you will first need to know the problem with "just using variables", and the concept of variable scope in Javascript. A variable is not only something that we measure, but also something that we can manipulate and something we can control for. Problems with Arrays vs. , although there are some constant speed mechanical drive applications out there too. I’ve tested one clip after converting to Constant per recommendation from another free software, still yielding the same result from both programs: choppy playback. I have used multiple brands and it's the same story. This page describes the Enum data type. An explanation of why the name "let" was chosen can be found here. static const when defining a constant local variable within a function. You can declare constants and variables in the declarative part of any PL/SQL block, subprogram, or package. It seems to map better to the way we would ask the question in natural language: "if the cake is chocolate" rather than "if chocolate is the cake". I have been asked on more than one occasion as to the difference between these two versions of the MP3 standard; this article will set out to describe these differences and their advantages and disadvantages. This is contrasted with a. In many ways, this is a preferable alternative to using water towers, which are more costly to install and. This means int &var = 10 is not a valid initialization. I found the video confusing as I couldn't quite follow the const keyword's behavior, and the advantages/disadvantages of using const with an array vs. 5 m·s−1 airflow). C# example for constant distinguish between variable and const c# constant vs readonly asp. Can you tell me whether it's a good approach? Thank you. Forecasting by Smoothing Techniques. With an Enum, you can specify a number of valid values for that variable and descriptive constant names for the values of the Enum. designed a second type of bispecific antibodies that bind tumor antigens on one side and a T cell. Does it actually make any difference if var is used in place ofconst` or vice-versa? Yes: var and const have different scope rules. This means that a readonly variable can have different values for different constructors in the same class. The power source is monitoring the arc and making millisecond changes in order to maintain a stable arc condition. Section 7-9 : Constant of Integration. const Compared in JavaScript – When and How to Use Each One. const dog={age: 3} dog. In vanilla JavaScript, variables are declared using 'var' keyword. Indeed, if in parenthesis we explicit the level of production at. A constructor could write three different values to three different instances' x1 fields. A constant is a type of variable whose value cannot be changed. Variable Bit Rate: A variable bit rate (VBR) is an encoding method that is used mainly in communications and computing to achieve improved audio quality in comparison to file size ratio. Variables in the C++ programming language, which Arduino uses, have a property called scope. Just declare and assign a value, it simply works, so why is there a need for the distinction of let and const? To fully understand that, you will first need to know the problem with "just using variables", and the concept of variable scope in Javascript. However, wouldn't const actually create a variable in RAM on some platforms, while a #define will simply put the data in ROM? If I use const to replace #define would I use alot more RAM? Thanks. Key Steps for Solving a Problem Using the Big M Method. const is an augmentation of let in that it prevents re-assignment to a variable. Each object of the array can be accessed by using its number (i. Constant vs. Const is block scoped. The difference is that with const parameters you promise you will not change the value referenced. This has to be the most ridiculous. Javascript variables: var vs let vs const Yesterday, a colleague of mine asked me what the difference between let and var is. A constexpr specifier used in a function or static member variable (since C++17) declaration implies inline. From the above example when x = 1, y = 5, when x = 2, y = 6. Variables and Constants in Algebra. Whitch of these is a higher qality format and can a vriable bitrate format save space?. In constant the value won't vary and cannot be changed by the user also,it remains constant through out the program. In its first match vs Mondo Bizzaro, SS took a blow to the wheel axle which bent the shaft (and made the disk angle weird) but also seems to have seized up a motor. In the last post we learned all about how scoping works with JavaScript let, const and var variables. Time differences were exacerbated with increasing TT lengths while smaller power fluctuations (5% versus 15%) produced a time closer to the fastest (constant power). Summary of Const vs. Use var for top-level variables that are shared across many (especially larger) scopes. Let's rewind. По пътя ще разгледаме разликите между var, let и const, както и ще покрием теми като. Expense "Expense" is a specific cash or other expenditure that can be followed in the accounting system Depreciation is a non-cash expense - according to tax rules. The car, tires,. Var vs Let vs Const. What is your opinion of the Variable Speed Constant Pressure Well Pumps? The one that has been recommended to me is a 1 1/2 hp 21gal per min. From a plot of Z(t) vs. Conclusion. , eye color). Variables gaging as an in-process control mechanism provides for the avoidance of each of these costly areas. Control valve versus variable-speed drive for flow control. (I know that I haven't touched on const at all, yet, and that is because it acts exactly like let when it comes to scope. You can also step through each declaration with the debugger, instead of jumping through all of them at. This is mathematically equivalent to a straight line on a plot of "log of production rate vs. In our daily coding practices, we get options to declare variables as const or readonly. If you never expect a variable to change, why not use const? And if you are desiring a more mutable variable, why not use let? Var allows the developer to make unintentional mistakes, whereas let and const are designed to make devs consider the variables long-time mutability, leading to fewer accidental errors. the number is variable. A SAS constant is a number or a character string that indicates a fixed value. Variable rate springs are great they ride real nice usually softer than stock for the first 1" TO 1-1/2"of travel then stiffen 20 to 25% more than OEM under load. Constant. In Go we can use the var keyword with a type or without a type. Enum Variable Type. constant bit rate is (like it sounds) a constant bit rate throughout the song. We now know that var is function scope, and now we know that let and const are block scope, which means any time you've got a set of curly brackets you have block scope. Time series plots of stationary variables should have a well-defined mean and a relatively constant variance (i. The balanced equation is: Solutions are written by subject experts who. Identifying Independent vs Dependent Variables. Same story with variable speed routers. Isentropic flows occur when the change in flow variables is small and gradual, such as the ideal flow through the nozzle shown above. Do I need a Constant Torque Rated Drive or a Variable Torque Rated Drive? Sometimes simply referred to as CT and VT. What follows is entirely subjective, but bear with me. As like let the const is also block-scoped means the value of the const variable will imply its powers in a specific block. In C# you can declare a constant like this "const" is a keyword. In variable the value can be assigned and changed at anytime. I use static const instead of #define for my global constants. A constant is a characteristic with no variations within a class of objects (i. A constexpr specifier used in an object declaration or non-static member function (until C++14) implies const. Why might workers want more constant capital as opposed to less? *4. Their derivatives are called partial derivatives and are obtained by differentiating with respect to one variable while holding the other variable constant. A variable could be likened to a storage box whose contents may often change. Variable Bitrate Encoding (VBR). Using a trade model, it is shown that the case of constant markups corresponds to log-linear trade regressions, while the case of variable markups corresponds to lin-log trade. const successMsg = "Correct Answer";. pdf from PSYCHOLOGY 409 at University of Tennessee. The cross-sectional area depends on x and this is why we write C=C(x). In this article let us explore each of them and find out the difference between let vs var vs const. ” The V-Taper2H by SS White is a variable taper file. Δx from part I of the experiment and (2) T2 vs. C# example for constant distinguish between variable and const c# constant vs readonly asp. Pre-planning your security video storage requirements is easier with constant bit rate because the amount of data being recorded never changes. Even if Typescript is a superset of ES6 and ES5, that doesn`t prevent it from checking assignments to a constant variable, does it? Even if it compiles to ES5 target, it can still check for this in TS and compile away the const when targetting ES5. Everything I wrote here so far are facts. While let can be reassigned, const cannot — so it is a variable that always has one, and only one, value that must be assigned at the time of declaration, not later in any case. I found the video confusing as I couldn't quite follow the const keyword's behavior, and the advantages/disadvantages of using const with an array vs. Variables declared by let have their scope in the. The difference between constant and variable in C programming is that a constant is similar to a variable, but it cannot be modified by the program once it is defined while a variable is a memory location that holds data. Graphs: Include your graph of (1) F vs. Though they run longer blower cycles, variable-speed ECM blowers consume up to 75 percent less electricity. Note that a welding arc is dynamic, in which current (A) and voltage (V) are changing constantly. So as far as C is concerned, this is a variable-length array, and variable length arrays are only valid as local variables (i. The final sentence there is the relevant one. var keyword ‘var‘ keyword has traditional …. In the last post we learned all about how scoping works with JavaScript let, const and var variables. VARIABLE SCOPE - GLOBAL & LOCAL. Variable-Speed Furnaces January 13, 2019 If you are in the market for a replacement furnace, you may have been doing some research to figure out which type of unit will be best for your family’s heating needs. Global variable in Class1 is 10 Global variable in Class2 is 10 Ruby Instance Variables. Constant velocity has zero acceleration. Constant fields and locals aren't variables and may not be modified. Constant Torque vs. When let is used to declare the i variable in a loop, the i variable will only be visible within the loop. My reason: if the studios don't use variable framerate then neither should we, if you want to make a smaller size file then use variable bitrate. average, E(X¯) and Var(X¯). because the argument to f must be a variable integer, but i is a constant integer. CyclingTips Podcast: Live at TDU with Ruth Winder and Brodie Chapman Constant power vs variable power. net const vs readonly vs static difference between const, readonly and static variable Whether I should use Constant or ReadOnly or Static Variable, how to decide it, what are the reasons to choose Constant, ReadOnly or Static. C# example for constant distinguish between variable and const c# constant vs readonly asp. Ok so clear & obvious does not apply to offside, why are all of these good goals being ruled out by VAR then? Their imaginary lines, where a hand or hair molecule is offside, magnifying in to mm to see anything that's offside, spending 2-3 minutes to decide, then inevitably ruling the goal out. Suggest using const (prefer-const) The --fix option on the command line can automatically fix some of the problems reported by this rule. Less power used means less money spent on the particular application. When you. In this model, each firm has a certain level of fixed costs per period, irrespective of production level (Q), and a constant average variable cost (AVC), so that total costs (TC) are expressed by this formula: TC= FC + AVC x Q. However, a constant cannot be redefined in a later piece of code; it must retain its original value. With the average bitrate, you control the size of the output file but give up control over the video’s quality. Sport Football Premier League Liverpool vs Man City: VAR, handball rule and baffling inconsistency are turning Premier League into a mess How can it take nearly four minutes to rule out Sheffield. Using variable torque drives for fan and pump applications is more cost effective than constant torque drives over the life of the drive because the motor requires less power to maintain once the nominal operational speed is reached. Just declare and assign a value, it simply works, so why is there a need for the distinction of let and const? To fully understand that, you will first need to know the problem with "just using variables", and the concept of variable scope in Javascript. There were constants, such as death, and variables, such as people. However, the flexibility of untyped constants means we can initialize unsigned integer variables using simple constants as long as we are clear about the type. In this way I can add new constant variables by adding new entries to this table without recompiling the package. Given the above, const makes code easier to read: within its scope, a const variable always refers to. Bitwise Constness One common justification for const correctness is based on the misconception that constness can be used as the basis for optimizations. dgallup has it right in his discussion of const. It eliminates accesses to memory that occur with fields and locals. This study by the National Renewable Energy Laboratory confirms that variable speed pumps are significantly more energy efficient than single speed pumps. We're committed to helping small businesses and nonprofits succeed—and to being your trusted partner every step of the way. Notice that there are three variables here: position, time, and acceleration. Dependent Variable. Switch to a different LED strip solution if you want to use the different topology to enjoy the benefits of it. In the example above, the value is enclosed in parentheses this executes the command: (Get-Process) before storing the result in the variable, rather than just storing the text "Get-Process". In this section we need to address a couple of topics about the constant of integration. Constant Variables in JavaScript, or: When "const" Isn't Constant December 31, 2015. It’s an old concept that resurfaces that tries to prevent “taper lock. Their derivatives are called partial derivatives and are obtained by differentiating with respect to one variable while holding the other variable constant. Your may want a source that has a combined characteristic. So what can we get from this? Well, firstly, not using 'const' causes 2 extra lines of IL to be generated, which in this case is tiny and insignificant. A constant is a characteristic with no variations within a class of objects (i. The constant is declared using the keyword CONST followed by data type, identifier and assignment of a value. Project Freelancer was a variable. Test runner. Differences between Independent and Dependent variables, constants, and. As we mentioned earlier, let is similar to var in some respects, but allows users to avoid some of the common “gotchas” that users run into in JavaScript. Not Real Constants. For example, if you open a faucet part way (the independent variable), the quantity of water flowing (dependent variable) changes in response--you observe that the water flow increases. В тази публикация ще научите два нови начина за създаване на променливи в JavaScript (ES6), нека и const. In this tutorial, you will learn about variables and rules for naming a variable. Energy Efficiency. For example, a:=b; assigns the value of b to a. In this article, we explain the var vs let vs const in JavaScript. Intro Contemplating the BMW 330d’s place in the motoring world as we move into a brand-new decade is a fascinating undertaking. Understanding Variable and Constant Scope. The car, tires,. Scoping rules. It’s important to intentionally declare your variables within a specific scope, using var, to keep your code clear and maintainable. Compare results of other browsers. * With p-s systems, pump en-ergy in the primary circuit is constant for each chiller stage and primary pumps must be staged on as chillers are staged on. Forecasting by Smoothing Techniques. The const declaration creates a read-only. Therefore, since the uniform density is constant and inversely proportional to the length of the support, the second random variable has a. What follows is entirely subjective, but bear with me. A variable is something that may change in value. In the last post we learned all about how scoping works with JavaScript let, const and var variables. We can declare variables with var. Energy Efficiency. Summary In a proportional function, the output is equal to the input times a constant. Readonly Both the keywords are used for the same thing that is to declare a member so that the values cannot be changes throughout the program. 위에서 let 은 변수, const 는 상수라고 구분지어 설명했지만, 좀더 구체적으로 설명할 필요가 있어보입니다. m from part II of the experiment. We introduced the const keyword as a means of marking a variable as giving "read-only access" in C++. Note that a welding arc is dynamic, in which current (A) and voltage (V) are changing constantly. To illustrate: DECLARE @SETVariable INT, @SELECTVariable INT SET @SETVariable = 1 SELECT @SELECTVariable = 2. Variables declared by let have their scope in the. Variable data can tell you if a specific girder that passes the test may still be dangerously close to giving way. Const is block scoped. Bosch, Theodore M. Variable air volume systems supply ventilation air at constant temperature but variable volume flow rate. I was reading a bash script someone made and I noticed that the author doesn't use eval to evaluate a variable as a command The author used bash -c "$1" instead of eval "$1" I assume using eva. According to standard practice global constant declarations are placed after preprocessor directives and before function prototypes. Speaking as someone who's had to do exactly what you're talking about a number of time, rr got it basically right, but I would change the emphasis a little. Variable Amplitude. If the company no longer incurs the cost, then it is most likely a variable cost. I thought, and had been told, that using constants instead of variables in PHP was mostly a matter of speed : at run time, the engine replaces every occurrence of a constant with its hard-coded value, making code presumably faster than using variables that must be evaluated each time they are encountered. I hope that by this time, if you didn't understand before, you understand block-scoping vs functional-scoping with regards to let, const, and var. You can’t reassign value to const variable. In the example above, the value is enclosed in parentheses this executes the command: (Get-Process) before storing the result in the variable, rather than just storing the text "Get-Process". let/const vs var. This initial breakdown of the system will determine how. A variable cost varies with the amount produced, while a fixed costs remain the. A generator mounted on the engine produces at a variable frequency due to the changes in engine RPM. cl" file, I need to declare and initialize some constant variables. For instance, in a formal language constants are special symbols that are labelled as such: what distinguish them from variables is the way they are treated in the interpretations of the language (i. A variable can be changed by the program once it is defined. Java applet disabled. it is stored in a variable or returned by a function. ### グローバルスコープ * トップレベルに変数や関数を置くと、それはどこからでもアクセスできるグローバルオブジェクトになる * 別のJSファイルに書いたとしても、同様にグローバル扱いになる ### 関数スコープ * funct. Variable costs, on the other hand, fluctuate in direct proportion to changes in output. In Go we can use the var keyword with a type or without a type. The other new keyword for variable declaration in ES6 is const, but it is often. In mathematics, a variable is a symbol used for a number not yet known, while a constant is a number or symbol that has a fixed value. Therefore, if you create a new window, always use type VAR. var - has function level scoping and can change the value reference. Though they run longer blower cycles, variable-speed ECM blowers consume up to 75 percent less electricity. lack of Canadian work experience and variable recognition. Suppose you're testing new girders for use in a construction project. VAV is a variable air volume by the term it means, it is used to varies the supply of air volume in a condition spaces through ductwork, whereas CAV constant air volume used to supply constant air volume into the condition spaces through ductwork. In this section two forms of a constant to a variable power will be presented. Constant. This is useful where the same constant is used throughout a program - a change where the constant is defined can have a global effect on the program. The opposite of a discrete variable is a continuous variable, which can take on all possible values between the extremes. Discuss the analogy I have suggested between the work of repairing constant capital and that of repairing variable capital. Variable Amplitude. A reference variable is a nickname, or alias, for some other variable; To delare a reference variable, we use the unary operator & int n = 5; // this declares a variable, n int & r = n; // this declares r as a reference to n In this example, r is now a reference to n. Chapter 4 Variances and covariances Page 3 A pair of random variables X and Y is said to be uncorrelated if cov. To test for non-time-series violations of independence, you can look at plots of the residuals versus independent variables or plots of residuals versus row number in situations where the rows have been sorted or grouped in some way that depends (only) on the values of the independent variables. Example: If you want to know how speed affects gas mileage, then speed is the only vari-able that should change. Here we call the Console. Variable rate springs are great they ride real nice usually softer than stock for the first 1" TO 1-1/2"of travel then stiffen 20 to 25% more than OEM under load. Constants are declared using a "const" keyword. If the company no longer incurs the cost, then it is most likely a variable cost. Let’s rewind. Using variable torque drives for fan and pump applications is more cost effective than constant torque drives over the life of the drive because the motor requires less power to maintain once the nominal operational speed is reached.