TAN(3) BSD Library Functions Manual TAN(3)NAME
tan, tanf -- tangent function
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
double
tan(double x);
float
tanf(float x);
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. For a discussion of error due to roundoff, see math(3).
RETURN VALUES
The tan() function returns the tangent value.
SEE ALSO acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), math(3), sin(3), sinh(3), tanh(3)STANDARDS
The tan() function conforms to ANSI X3.159-1989 (``ANSI C89'').
BSD May 2, 1991 BSD
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TAN(3) BSD Library Functions Manual TAN(3)NAME
tan -- tangent function
SYNOPSIS
#include <math.h>
double
tan(double x);
long double
tanl(long double x);
float
tanf(float x);
DESCRIPTION
The tan() function computes the tangent of x (measured in radians).
SPECIAL VALUES
tan(+-0) returns +-0.
tan(+-infinity) returns a NaN and raises the "invalid" floating-point exception.
VECTOR OPERATIONS
If you need to apply the tan() function to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework may
give significantly better performance:
#include <Accelerate/Accelerate.h>
vFloat vtanf(vFloat x);
void vvtanf(float *y, const float *x, const int *n);
void vvtan(double *y, const double *x, const int *n);
SEE ALSO acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), sin(3), sinh(3), tanh(3), math(3)STANDARDS
The tan() function conforms to ISO/IEC 9899:2011.
BSD December 11, 2006 BSD
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