Mathematical functions

#include <math.h>
void main(void) {
  printf("%f", sqrt(16)); // square root
  printf("%f", ceil(1.4)); // round up (round)
  printf("%f", floor(1.4)); // round up (round)
  printf("%f", pow(4, 3)); // x(4) to the power of y(3)
}

• abs(x) absolute value
• acos(x) arc cosine value
• asin(x) arc sine
• atan(x) arc tangent
• cbrt(x) cube root
• cos(x) cosine
• the value of exp(x) Ex
• sin(x) the sine of x
• tangent of tan(x) angle