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 Author Comment/Response Shawn Kelly 06/21/02 10:15am I have been attempting to use the Compile command to Compile a function that performs some calculations and fills a matrix. The nested do loops are shown below: Kmatfunc[m_, k_] := Do[{ Do[{ Ws1[nl], Ifs1[j], Ifs2[j], If[tst == 1, Do[K[[NLtrans[[nl, m, k, i]], SNLtrans[[nl, m, k, i, j]]]] = -co1* co2*Fo[nl, m, k, i, j, 0], {j, 1, 4}]], K[[NLtrans[[nl, m, k, i]], NLtrans[[nl, m, k, i]]]] = co1*(co4 + (Sum[co3*co1*Fo[nl, m, k, i, j, Ifs3[j]], {j, 1, 4}] + co5*2*h* dt/(rho*dx*Cpm[[NLtrans[[nl, m, k, i]]]])))}, {i, 1, L[nl, m, k]}]}, {nl, 1, 13}] Ws1[j] is a Which statement that defines the variable con, where n is a number from 1 to 5.; i.e co1, co5...Contained in Ws1[j] are definitions for Ifs1[j],Ifs2[j]... Fo[nl,m,k,i,j,Ifs3[j]] is a previosly defined function. The Table NLtrans and SNLtrans are also previously defined. km and Cpm are lists. L[nl,m,k] is a function to define the length of a sub-table. And finally, K is the table of interest...what I am filling. It has been previously defined, it is also square. I guess my question is, when I define variables, do I define everything used in the calculation i.e., I would define a function kamt=Compile[{{m,_integer},{k,_integer},{K,_real,2}},....Do[{Do[{stuff}...] Is it a problem if km and Cpm are lists and not tables of dimension {1,1xx} Thanks Shawn URL: ,

 Subject (listing for 'Help with Compile.') Author Date Posted Help with Compile. Shawn Kelly 06/21/02 10:15am Re: Help with Compile. Forum Modera... 07/03/02 4:59pm
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