I have some "complicated" cross-section equations (i.e. cross-section equations with many terms) in my Mathematica 4.0 notebooks that I would like to use to perform some likelihood fits to data in my ROOT files using ROOT's fitting functionality. Has anyone else needed to solve a similar problem and has a solution? I could recode the cross-section equations in C++ in order to use ROOT to do the fits, but there is obviously enormous potential for mistakes in doing so since Mathematica keeps all of the terms of my cross-section equations consistent. There is also a Mathematica API which I could use to pass the Mathematica "callback" function to TMinuit. Using the Mathematica API probably makes the most sense. However, I didn't want to go off and reinvent the wheel of writing a ROOT+Mathematica interface if such a utility already exists. Has anyone else thought about how to solve this problem? Any thoughts would be greatly appreciated. Regards, Matt -- Matthew D. Langston SLD, Stanford Linear Accelerator Center langston@SLAC.Stanford.EDU
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