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How would you declare a constant of 5 called MYCONST?
A constant of 5 called MYCONST would be declared as #define MYCONST 5. This is because the statement used is a define statement.
Write a preprocessor directive to accomplish Define symbolic constant YES to have the value 1?
I'm not exactly sure that this is a question, but here you are:#define YES 1
What are 3 types of opposition to current flow that impedance represents?
Impedance represents three types of opposition to current flow: resistance, inductive reactance, and capacitive reactance. Resistance opposes current flow due to the material properties, causing energy dissipation as heat. Inductive reactance arises from inductors, opposing changes in current due to magnetic fields, while capacitive reactance comes from capacitors, opposing changes in voltage due to electric fields. Together, these components define how alternating current behaves in a circuit.
Why and when do you use the define directive?
The #define preprocessor directive is severely overused in my opinion. Often, you will see programmers write something like this: # define MAX(a, b) (((a) > (b))? (a) : (b)) However doing so is rather dangerous, because the preprocessor replaces things textually. This means that if you pass in a call to a function, it may happen twice, for example: MAX(++i, j) will be expanded to (((++i) > (j))? (++i) : (j)) which is bad. A much safer (and more common) example is that people will use #define to create a constant variable: #define MYCONST 10 This too can cause problems if another file depends on the constant and certain other conditions are met. A safer alternative is to declare a const variable. The one advantage of using #define for literal constants is that the number will not be stored in memory attached to an object like a const variable will.
What is the effect of this statement in C program define PI 3.14159?
All pre-processor directives begin with a # symbol. One of the most-used pre-processor directives is the #define directive, which has the following syntax:#define SYMBOL definitionThis defines a macro. During preprocessing, all occurrences of SYMBOL within your source code will be replaced with whatever is written in the definition (which includes everything up to the end of the line).#define PI 3.14159Here, all occurrences of the symbol PI within your source code will be replaced with the character sequence 3.14159. So if your source contained the following function:double area_of_circle (double radius) {return 2*PI*radius*radius; // 2 PI r squared}The compiler will see the following instead:double area_of_circle (double radius) { return 2*3.14159*radius*radius;}While this may well seem a convenient method of defining constants, it is not. Macros should never be used to define constants. If you need a constant, use an actual constant. If the constant must be calculated at compile time, then use a constant expression. In this case we can define PI as follows:constexpr double PI (void) {return 4.0 * atan (1.0);}Note that the literal value 3.14159 takes no account of the implementation's precision because the compiler will convert it to a value of 3.141590. By defining the constant expression, the compiler will use a value of 3.14159265359..., including as many digits of precision as the implementation will physically allow, and thus minimising rounding errors.Macros (#defines) should only be used for conditional compilation, never to define constants.
How do you define a constant in PHP?
You can define a constant using the define() directive.you can use this a number of ways;to define a variable to a constant do:$string = "hello";define("string",$string);to define a string to a constant use:define("hello","there");to define a integer or other numerical value use:define("number",1.0);Summery:to define a string use quotes as you would do a string.Unlike variables in PHP a constant cannot be changed or undefined once it is defined. Constant remains automatically globally throughout the script. It means that it can be accessed from inside a function. e.g.
How do you define constant?
Constant means an ongoing situation or thing.
How do you stop a charging order being put on a property?
Not familiar with the term "charging order. Please define it, and what relationship it has to 'property.'
How would you declare a constant of 5 called MYCONST?
A constant of 5 called MYCONST would be declared as #define MYCONST 5. This is because the statement used is a define statement.
What is slope of 0?
if you define y = constant then the slope of any constant is 0 so if you define the line y = 0 the slope of 0 is 0.
Define a specific rate constant?
The specific rate constant a proportionally determined constant that is usually different for various reactions with changes in temperature.
What is the annual mortgage constant for a 10 percent loan with a 25 year amortization?
Please define what you mean by "constant". Thank You!
How do you declare constant in Turbo C?
In C there is no constant with a name. It is done with the preprocessor directive of #define as in #define pi 3.1416 The preprocesor substitutes every occurance of word pi (with blanks on either side) with 3.1416
Write a preprocessor directive to accomplish Define symbolic constant YES to have the value 1?
I'm not exactly sure that this is a question, but here you are:#define YES 1
Pi is a mathematical constant related to circle define Pi?
Ratio of the perimeter of a circle (circumference) to its diameter
Define constant and variable?
Constant means that it never changes. Variable means that it could, and likely will change. There are 24 hours in a day, so that is a constant. The weather is variable, so it could be cloudy, rainy, windy, or sunny.
Define constant returns to scale?
My loose definition of constant returns to scale:Constant returns to scale occur when a given increase in output is brought about by the same proportional increase in returns.
