-tan() is a function that are able to find the value of the tangent(trigonometry function).
-It is predefined in math.h header file.
Syntax-
tan(angle)
program-
#include < stdio.h>
#include < math.h>
int main () {
double ans,val;
int ang;
printf("Enter angle\n");
scanf("%d",&ang);
val = 3.14159265/180;
ans= tan(ang*val);
printf("tan(%d) is %f",ang,ans);
return(0);
}
Enter angle
45
tan(45) is 1.000000