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TAN(3) Library Functions Manual TAN(3)

tan, tanf, tanltangent functions

#include <math.h>

tan(double x);

tanf(float x);

long double
tanl(long double x);

The () function computes the tangent of x (measured in radians). The () function is a single precision version of tan(). The () function is an extended precision version of tan(). A large magnitude argument may yield a result with little or no significance.

The tan(), tanf() and tanl() functions return the tangent value.

acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), sin(3), sinh(3), tanh(3)

The tan() function conforms to ANSI X3.159-1989 (“ANSI C89”).

June 5, 2013 OpenBSD-current