Hi, Does anyone have experience using the hyperbolic trig functions in LON-CAPA? I have recently been coding some new problems that use the &tanh() function. I was comparing the results to those I got using MATLAB, and after some troubleshooting it appears that the difference is the tanh. Specifically, the &tanh($x) function in LON-CAPA always returns an imaginary value of zero.
Here is the code: $tanh = &tanh($gamma*$len); $tanh_real = Re($tanh); $tanh_imag = Im($tanh); where $gamma is a complex number and $len is a scalar. MATLAB computes a complex number for tanh in the examples I have tried. Am I doing something wrong? Does LC not compute tanh correctly? Best regards, Gene L. Harding, PE Associate Professor of ECET Purdue University 574-520-4190
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