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Re: Caching of values and delayed sets
Hi, and you never had the idea to write out the dependence and to use Mathematica's dynamic programming feature with: c[a_,b_]:=c[a,b]=slow How ever as long you have no explicit dependence Mathematica can't store the argument lists for you. Regards Jens Nafod40 wrote: > > Hola Amigos, > > I have a variable A that depends via a delayed set on variables B1 > through B1000 that each depend via delayed set on variable C and other > a mixture of the other B's, which delayed set depends on some slow to > calculate function C:= slow[ ]. If you explode out the tree view of A > symbolically, the variable C might appear 5000 times in a messy > acyclic dependency graph. > > How do I inject some smarts, so that, when asking for the value of A, > I only evaluate C:=slow[ ] once, and cache it and use the cached value > for every other time that I need C?