C programming has numerous functions. These functions are used to operate on floats.
math.htan(), cos(), sin()- these functions are standard trigonometric functions that all work in radius.
sqrt()- this function is used to determine the square root of the given value.
pow(x,y)- this function returns the value .
fabs()- this function returns an absolute value.
log(), exp()- these functions provides a natural logarithm and a natural exponent.
log10() - this functions denotes the base 10 logarithm.
stdlib.habs(), labs() -these functions return the value of an int and a long.
div(x,y)- it returns the structure with the division and remainder of x/y for int and a long.
Let’s see a example program of how the sqrt(), pow(), abs() functions work:
#include<stdio.h>#include <math.h>#include<stdlib.h>int main(){printf("%f",sqrt(25));printf("%f",sqrt(7));printf("%f",pow(2,5));printf("%f",pow(3,2));printf("%d",abs(-12));return 0;}
Let’s see a program that illustrates the fabs() function:
#include <stdio.h>#include <math.h>int main (){int h, s;h = 4321;s = -443;printf("The absolute value of %d is %lf\n", h, fabs(h));printf("The absolute value of %d is %lf\n", s, fabs(s));return(0);}