tan in c

What is tan in c programming?

tan in c is a mathematical function which is used to find tangent value of a given number.

This function is defined in math.h header file.

Prototype

#include<math.h>
double tan(double y);

Parameters

tan function takes floating point value as angle in radians.

Return value

This function returns tangent of a given number.


Example program for tan in c

#include <stdio.h>
#include <math.h>
#define PI 3.14
int main() 
{
   double x, res, val1;
   x=15.0;
   val1=PI/180;
   res=tan(x*val1);
   printf("The tan of %lf is %lf degrees", x, res);
   return 0;
}
Example for tan in c programming

While using gcc use below command to add math header.

gcc file_name.c -lm

Code explanantion

The variable val1 is defined in terms of degrees and passed the tan function along with the input value. The result is printed onto the console.

tan() Man page


Difference between tan and tanh in c

tan in c is a mathematical function that is used to find the tangent of a given number. tanh in c is used to find the hyperbolic tangent of a given number.

Prototypes are as follows

double tan(double y);

double tanh(double y);
tan in ctanh in c
Used to find tangent of a given number.Used to find hyperbolic tangent of given number.
double tan(double y);double tanh(double y);

Difference between tan and sin in c

tan in c is a mathematical function that is used to find the tangent of a given number. sin in c is a mathematical function that is used to find the sine of a given number.

Prototypes are as follows

double tan(double y);

double sin(double y);
tan in csin in c
Used to find tangent of a given number.Used to find sine of a given number.
double tan(double y);double sin(double y);

Difference between tan and cos in c

tan in c is a mathematical function that is used to find the tangent of a given number. cos is a mathematical function that is used to find the cosine of a given number.

Prototypes are as follows

double tan(double y);

double cos(double y);
tan in ccos in c
Used to find tangent of a given number.Used to find cosine of a given number.
double tan(double y);double cos(double y);

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What is the tan equation?

It is a trigonometric function. tan of an angle m is the length of the opposite side divided by the length of the adjacent side.