Math.h

Math.h is a header file declared before using basic mathemical operation such as

Power (Squareroot, power) Trigonometric(Sine, cosine, tangent) Exponential and logarithmic (Log, exponential) Rounding, Absolute value Etc etc

Power

Power Example : x^y should be written as power(x,y); Example in coding:

#include <stdio.h>

#include <math.h>

int main (){

printf ("7 ^ 3 = %lf\n", pow (7,3));

printf ("4.73 ^ 12 = %lf\n", pow (4.73,12));

printf ("32.01 ^ 1.54 = %lf\n", pow (32.01,1.54));

return 0;

}

Power

Squareroot Example : x^y should be written as power(x,y); Example in coding:

#include <stdio.h>

#include <math.h>

int main (){

double param, result;

param = 1024.0;

result = sqrt (param);

printf ("sqrt(%lf) = %lf\n", param, result );

return 0;

}

Trigonometric

Sine Sin() Example: result = sin (param*PI/180);

Cosine cos() Example : result = cos (param*PI/180);

Tangent Tan() Example: result = tan (param*PI/180);

Sine exaple

#include <stdio.h>

#include <math.h>

#define PI 3.14159265

int main ()

{

double param, result;

param = 30.0;

result = sin (param*PI/180);

printf ("The sine of %lf degrees is %lf.\n", param, result );

return 0;

}

cosine

#include <stdio.h>

#include <math.h>

#define PI 3.14159265

int main ()

{

double param, result;

param = 60.0;

result = cos (param*PI/180);

printf ("The cosine of %lf degrees is %lf.\n", param, result );

return 0;

}

Tangent

#include <stdio.h>

#include <math.h>

#define PI 3.14159265

int main ()

{

double param, result;

param = 45.0;

result = tan (param*PI/180);

printf ("The tangent of %lf degrees is %lf.\n", param, result );

return 0;

}

Log

Example :

#include <stdio.h>

#include <math.h>

int main (){

double param, result;

param = 5.5;

result = log (param);

printf ("ln(%lf) = %lf\n", param, result );

return 0;

}

Exponential

Example :

#include <stdio.h>

#include <math.h>

int main (){

double param, result;

param = 5.0;

result = exp (param);

printf ("The exponential value of %lf is %lf.\n", param, result );

return 0;

}

Absolute value

Example:

#include <stdio.h>

#include <math.h>

int main (){

printf ("The absolute value of 3.1416 is %lf\n", fabs (3.1416) );

printf ("The absolute value of -10.6 is %lf\n", fabs (-10.6) );

return 0;

}

QUESTION?

Log and exponential

Example :

#include <stdio.h>

#include <math.h>

int main (){

double param, result;

param = 5.5;

result = log (param);

printf ("ln(%lf) = %lf\n", param, result );

return 0;

}

Log and exponential

Example :

#include <stdio.h>

#include <math.h>

int main (){

double param, result;

param = 5.5;

result = log (param);

printf ("ln(%lf) = %lf\n", param, result );

return 0;

}