C/Math/Tan ATan

Calculate arctangent, 2 parameters: how to use atan2

<source lang="cpp">

1. include <stdio.h>
2. include <math.h>
3. define PI 3.14159265

int main () {

 double x, y, result;
 x = 0;
 y = 6;
 result = atan2 (y, x) * 180 / PI;
 printf ("Arctangent for (x = %lf, y = %lf) is %lf degrees\n", x, y, result );
 return 0;

}

      </source>

Calculate arctangent: how to use atan

<source lang="cpp">

1. include <stdio.h>
2. include <math.h>
3. define PI 3.14159265

int main () {

 double v, result;
 v = 5;
 
 result = atan ( v ) * 180 / PI;
 printf ("Arctangent of %lf is %lf degrees\n", v, result );
 return 0;

}

      </source>

Calculate hyperbolic tangent: how to use tanh

<source lang="cpp">

1. include <stdio.h>
2. include <math.h>
3. define PI 3.14159265

int main () {

 double param, result;
 param = 60;
 result = tanh (param*PI/180);
 printf ("Hyperbolic tangent of %lf degrees is %lf\n", param, result );
 return 0;

}

      </source>

Calculate tangent: tan

<source lang="cpp">

1. include <stdio.h>
2. include <math.h>
3. define PI 3.14159265

int main () {

 double param, result;
 param = 45;
 result = tan ( param * PI / 180);
 printf ("Tangent  %lf degrees = %lf\n", param, result );
 return 0;

}

      </source>

How to use atan

<source lang="cpp">

1. include <math.h>
2. include <stdio.h>

int main(void) {

 double val = -1.0;
 do {
   printf("Arc tangent of %f is %f.\n", val, atan(val));
   val += 0.1;
 } while(val<=1.0);
 return 0;

}

      </source>

How to use atan2

<source lang="cpp">

1. include <math.h>
2. include <stdio.h>

int main(void) {

 double val = -1.0;
 do {
   printf("Atan2 of %f is %f.\n", val, atan2(val,1.0));
   val += 0.1;
 } while(val<=1.0);
 return 0;

}

      </source>

How to use tan

<source lang="cpp">

1. include <math.h>
2. include <stdio.h>

int main(void) {

 double val = -1.0;
 do {
   printf("Tangent of %f is %f.\n", val, tan(val));
   val += 0.1;
 } while(val<=1.0);
 return 0;

}

      </source>

Hyperbolic tangent: how to use tanh

<source lang="cpp">

1. include <math.h>
2. include <stdio.h>

int main(void) {

 double val = -1.0;
 do {
   printf("Hyperbolic tangent of %f is %f.\n", val, tanh(val));
   val += 0.1;
 } while(val<=1.0);
 return 0;

}

      </source>