Hi everyone,
I not very clear what you are talking about.

Receving decimal numbers???

Do you mean returning decimal numbers from a function

declare a variable as float
float a;
a = rew( ); // Is this what you mean

As for your other question

You cannot call a function within its own function.
You can declare the function externally being public or private
and call it
if there is arguments and a return value
a = gow(c,d); // Is this what you mean

if it has no arguments or any return values

gow(); //Is this what you mean

I really hope this helps you

Yours Sincerely

Richard West

For reading you use scanf() with format specifier "%f","%g","%e" or printf();
the variable tyoe is float and functions are in math.h

You need functions->read tutorials

OK, let me clear things up, suppose i want to enter 23.45 using SCANF, the program will only accept the 23 and use the .45 for the other SCANF, how can i avoid it.

First, avoid scanf. Second, use a floating point type to enter a floating point value.