TANH(3) BSD Programmer's Manual TANH(3)
tanh, tanhf - hyperbolic tangent function
#include <math.h> double tanh(double x); float tanhf(float x);
The tanh() and tanhf() functions compute the hyperbolic tangent of x. For a discussion of error due to roundoff, see math(3).
Upon successful completion, these functions return the hyperbolic tangent value. The following may also occur: 1. If x is +- 0, x is returned. 2. If x is NaN, a NaN is returned. 3. If x is positive infinity, a value 1 is returned; if x is negative infinity, -1 is returned. 4. If x is subnormal, a range error can occur and x is returned.
acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), math(3), sin(3), sinh(3), tan(3)
The described functions conform to ISO/IEC 9899:1999 ("ISO C99"). MirOS BSD #10-current September 18, 2011 1
Generated on 2014-02-10 02:47:05 by $MirOS: src/scripts/roff2htm,v 1.79 2014/02/10 00:36:11 tg Exp $
These manual pages and other documentation are copyrighted by their respective writers;
their source is available at our CVSweb,
AnonCVS, and other mirrors. The rest is Copyright © 2002‒2014 The MirOS Project, Germany.
This product includes material provided by Thorsten Glaser.
This manual page’s HTML representation is supposed to be valid XHTML/1.1; if not, please send a bug report – diffs preferred.