print float number completely in C language

To print a float number in C language, you can use the "%f" format specifier with the printf() function. Here is an example:

#include <stdio.h>

int main() {
   float number = 3.14;
   printf("%f", number);
   return 0;
}

This code will output "3.140000" to the console. If you want to control the precision of the float number, you can use the "%.nf" format specifier, where "n" is the number of decimal places you want to display. For example:

#include <stdio.h>

int main() {
   float number = 3.14;
   printf("%.2f", number);
   return 0;
}

This code will output "3.14" to the console, as we have specified 2 decimal places.