On 4 May 2010 11:59, user8472 <head_over_he...@freenet.de> wrote: > > becomes > streams.scm:601:14: While evaluating arguments to stream-map in expression > (stream-map f y): > streams.scm:601:14: Variable used before given a value: y > ABORT: (unbound-variable) > > So something is still not quite right.
My bad, I completely failed to notice that delayed evaluation was a part of the problem. Can you simplify the example to its barest elements that still provoke the error? Hopefully, this will provide a clue to what the true as to what the problem is. (Not having seen the definition of "integral", I'm wondering whether some failure to initialize y to y0 might have something to do with it ... some missing force somewhere ... but that's a wild and probably wrong guess). --linas
