tan

Name

tan, tanf, tanl
- tangent functions

Library

libm.lib

Synopsis

#include <math.h>

double tan (double x);

float tanf (float x);

long double tanl (long double x);

Return values

The tan function returns the tangent value.

Detailed description

The tan and tanf functions compute the tangent of x (measured in radians). A large magnitude argument may yield a result with little or no significance. The function tanl is an alias to the function tan

Examples

#include <math.h>
int main( )
{
   double pi_by_4 = 0.7853981633974483096156608458198757;
   double y;
   y = tan( pi_by_4 );
   printf( "tan( %f)  = %f\n", pi_by_4,  y );
   y = tanf( pi_by_4);
   printf( "tanf( %f) = %f\n", pi_by_4, y );
   y = tanl( pi_by_4);
   printf( "tanl( %f) = %f\n\n", pi_by_4, y );
}

Output

tan ( 0.7853981633974483096156608458198757 ) = 1.000000
tanf( 0.7853981633974483096156608458198757 ) = 1.000000
tanl( 0.7853981633974483096156608458198757; ) =1.000000

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