All Forums  Origin Forum for Programming  Forum for Origin C  how to define a function in Origin C???

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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 cellbiophysics[/i] [br]Origin Version (Select Help-->About Origin): Origin 8 Operating System:Window XP I'm trying to use kind of user-defined function in Origin C, called "func". I wrote a code like C-language but it didn't work. My code is as follows; ==================================================================== #include <origin.h> double dSum = 0; int ser=nser; double func(int ni, double xi, double ti) { double fi; fi = ni^2*xi+xi^3(ni+2*ti); return fi; } for(int n = 0; n < ser; n++) { dSum += (-alp*bt)^n*((1-f)*func(n,x,t1)+f*func(n,x,t2)); } y = A*dSum; ==================================================================== , where the fitting parameters are A, alp, bt, f, t1,and t2. nser is set to fixed value. But, there are some errors in compiling. The errors occurred at "double func(int ni...)". The error messages are as follows; ==================================================================== compiling... _nlf3D_slow_080224.fit FEEDBACK macros not defined D:\OriginC\NLSF\_nlf3D_slow_080224.fit(42) :Error, invalid declaration D:\OriginC\NLSF\_nlf3D_slow_080224.fit(42) :Error, general compile error D:\OriginC\NLSF\_nlf3D_slow_080224.fit(30) :Error, error(s) found in compiling function _nlsf3D_slow_080224 ==================================================================== Please let me know what's wrong. How can I fix it? Thanks, KB. Edited by - cellbiophysics on 03/09/2008 9:04:59 PM [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.