It are a variable you add modifer 'const' to. It means these variable mustn't be modified.
a string constant
Anything declared as a constant.
If two variables are in direct relationship then the ratio of the two variables is known as the constant of proportion between them. In algebraic form, if X and Y are the two variables, then direct proportionality implies that Y = cX and c is the constant of proportionality.
Constant variables are constant, they do not change. Derived variables are not constant. They are determined by the other values in the equation.
An identifier is the names given for labels, functions and variables in the c language.
Constant variables refers to those variables whose values cannot be changed. These variables should be initialized along with their declaration. Attempt to change the value of a constant variable will generate compile error. The syntax for declaring a constant variable is:const data-type variableName = value;
If two variables, X and Y, are in direct proportion then Y = c*X for some fixed value c. This value, c, is the constant of proportionality for this relationship.
The state of being in proportion.
Variables (or constants) that contain addresses.
If the product of two variables is equal to a constant, then they are inversely proportional. eg. If xy=c where c is a constant, then x and y are inversely proportional.
A floating point constant value.
No they are not the same. A constant variable keeps going at a constant rate.