variable is a name that allocates the memory space where you store some data
Hardly. Names do not allocate memory space *sigh*
Pointer is a variable, A variable that stores the address of another variable. Size of a pointer is 2 bytes.
I define an variable by saying x- an value
They define a variable by saying n equals some value.
with the help of pointers we able to store the memory location of any variable. In c the pointer variable is use to store the memory location of any variable. The pointer variable is define as a simple variable but in pointer variable use a special "*" character at the left most side of name of pointer variable. If any variable name have * it means it is a pointer variable it hold the memory location of variable.
Any variable can be declared as the independent variable, then the other would be the dependent variable. However, it is quite common to arbitrarily define y as the dependent variable - a variable that depends on x.
I can tell you that it is not an illegal variable name in C. I do not currently have a C++ compiler installed, but I would assume that it would also be valid in C++.
State what the variable represents in the equation.
The variable c times the variable b simply equals cb. Just as the variable x times the variable y would equal xy, and so on.
define
Just type declare then the variable that you desire to assigned a certain constant value on it. Just type declare then the variable that you desire to assigned a certain constant value on it.
There are no 'sections' in C source, you can define functions anywhere, except inside another function or variable/type definition.
12c