Re: help

*To*: mathgroup at smc.vnet.net*Subject*: [mg72601] Re: help*From*: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>*Date*: Wed, 10 Jan 2007 04:33:33 -0500 (EST)*Organization*: Uni Leipzig*References*: <eo00ht$kl1$1@smc.vnet.net>*Reply-to*: kuska at informatik.uni-leipzig.de

Hi, when you define the pattern for f[] in the template file you should setup a pattern like :Pattern: f[x_Real,y_Real] and mathematica will do the rest, because an expression is evaluate from the inner expression to the outer one, it will in f[g[x],y] first evaluate g[x] that should return a floating point number and than Mathematica will call your MathLink function, when y is also a floating point number. Regards Jens jinghantao wrote: > Dear Sir, > I begin to learn something about mathlink in mathematica, because I have some c/c++ and Fortran programs and I want they can be called in mathematica. As a beginner, I read materials such as "Mathlink Tutorial" and "Mathematica Help". and try to run examples refered in they. So far these examples have been run on my computer. > In fact, I want to call external programs from the mathematica Kernel and work in mathematica such as f[g[x],y]. This form is different from the example of addtwo[i,j] function. The first paramter in function is function in the former rather than a variable. Furthermore, for the g[x], I can define it in mathematica. I want look for such examples, but I fail at last. I hope that you can give me some examples or corresponding materials. thank you very much. > > jinghantao > jinght at ihep.ac.cn > 2007-01-09 > >