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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by jp.medina11[/i] [br]Hi, I am trying to compile a user defined complex function using [b]cosh()[/b] in the code builder tab at the NLF fitting Fuction Organizer of OriginPro 2022b. However, I get the error message "Error, cannot convert argument(1) in function call". For some reason when I use the function cos(), it compiles all. But I need the hyperbolic instead. Moreover, if I try to use the function ImCosh(), it is not recognized and the displayed error message is: "Error, function or variable ImCosh not found". The code is here below, if someone can help me I am very grateful! ------------------------------------------------- void _nlsfIMPS_Complex( // Fit Parameter(s): double tau, double alpha, // Independent Variable(s): double omega, // Dependent Variable(s): double& y1, double& y2) complex cc = cosh(1+1i*tau*alpha*omega); y1 = cc.m_re; y2 = cc.m_im; ------------------------------------------------- Thanks!! Juan Medina [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.