C – sin() cos() tan() exp() log() function

• sin( ), cos( ) and tan( ) functions in C are used to calculate sine, cosine and  tangent values.
• sinh( ), cosh( ) and tanh( ) functions are used to calculate hyperbolic sine, cosine and tangent values.
• exp( ) function is used to calculate the exponential “e” to the xth power. log( ) function is used to calculates natural logarithm and log10( ) function is used to calculates base 10 logarithm.
• ”math.h” header file supports all these functions in C language.

Example program for sin(), cos(), tan(), exp() and log()  in C:

#include <stdio.h>

#include <math.h>

int main()

{
       float i = 0.314;
       float j = 0.25;
       float k = 6.25;
       float sin_value = sin(i);
       float cos_value = cos(i);
       float tan_value = tan(i);
       float sinh_value = sinh(j);
       float cosh_value = cosh(j);
       float tanh_value = tanh(j);
       float log_value = log(k);
       float log10_value = log10(k);
       float exp_value = exp(k);

       printf("The value of sin(%f) : %f \n", i, sin_value);
       printf("The value of cos(%f) : %f \n", i, cos_value);
       printf("The value of tan(%f) : %f \n", i, tan_value);
       printf("The value of sinh(%f) : %f \n", j, sinh_value);
       printf("The value of cosh(%f) : %f \n", j, cosh_value);
       printf("The value of tanh(%f) : %f \n", j, tanh_value);
       printf("The value of log(%f) : %f \n", k, log_value);
       printf("The value of log10(%f) : %f \n",k,log10_value);
       printf("The value of exp(%f) : %f \n",k, exp_value);
       return 0;
}

Output:

The value of sin(0.314000) : 0.308866 The value of cos(0.314000) : 0.951106 The value of tan(0.314000) : 0.324744 The value of sinh(0.250000) : 0.252612 The value of cosh(0.250000) : 1.031413 The value of tanh(0.250000) : 0.244919 The value of log(6.250000) : 1.832582 The value of log10(6.250000) : 0.795880 The value of exp(6.250000) : 518.012817