math_functions.c

#include <math.h>
#include <stdio.h>
/* random math functions */
int main() {

    double A = sqrt(9);
    // -> 3         same as square root of 9
    double B = pow(2, 4);
    // -> 16        same as 2**4
    int C    = round(3.14);
    // -> 3         rounds the number duh, basically 2.3 rounds to and 2.5 rounds to 3 when using round()
    int D    = ceil(3.14);
    // -> 4         rounds it up
    int E    = floor(3.99);
    // -> 3         always round it down
    double F = fabs(-100);
    // -> 100       find absoloute value of a number (how far away it is from 0 (so it will take
    //              any negative numbers and make them positive))
    double G = log(3);
    // -> 1.098612  gets the log of a number
    double H = sin(45);
    // -> 0.850904  its in the name, its sine
    double I = cos(45);
    // -> 0.525322  again, its cosine
    double J = tan(45);
    // -> 1.619775  wowy its tangnet

    printf("%lf", J);

    return 0;
}