tanh

Contents: Description, Arguments, Usage, Examples, Sub-Functions, Related Functions, Source Supported Under Version: > 1.11 Current .dvrc Version: 1.29 Description Computes the hyperbolic tangent of the input value. Arguments and Return Values Parameters: An array of numeric data Return Value: A float (or double) array of the same dimensions as the input containing the hyperbolic tangent of the input Usage Syntax: tanh(x) 'x' is any numeric array tanh(x) = sinh(x)/cosh(x) = (exp(x) - exp(-x))/(exp(x) + exp(-x)) = (exp(2*x) - 1)/(exp(2*x) + 1) Return format is double if input is double, float otherwise When tanh() is entered without any arguments, it prints its description, as shown below. Examples dv> tanh() Hyperbolic tangent tanh(x) = sinh(x)/cosh(x) = (exp(x) - exp(-x))/(exp(x) + exp(-x)) = (exp(2*x) - 1)/(exp(2*x) + 1) Works for arrays S.Marshall 01-25-2008 0 dv> tanh(-1//0//1) 3x1x1 array of float, bsq format [12 bytes] -0.761594 0.00000 0.761594

DavinciWiki Mini-Nav Bar Contents Functions Function Categories Common Procedures Glossary Download Davinci Change Log News Mailing List Contact Developers davinci-dev [AT] mars.asu.edu All other topics See navigation on the left Major Sub-Functions exp Related Functions exp cosh sinh tan math.dvrc tanh() Recent Library Changes Change Log Created On: 02-26-2008 Modified On: 02-26-2008