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19:28 <shavenger> hi
19:29 <shavenger> I have a stupid question ... but I was unable to find easily the information in the doc
19:29 <shavenger> I'd like to put some constraints in my equations
19:29 <shavenger> like x >= 0
19:29 <shavenger> and then launch a solve (non linear system)
19:29 <shavenger> could you help me please ?
19:55 <Prax01D> You'll have to wait a bit for an amswer, likely.
20:01 <HaraldG> solve isn't able to handle inequalities afaik, so you have to filter the results manually.
20:02 <HaraldG> Strange enough there doesn't seem to be a general function to filter a list with some predicate. Very strange.
20:02 <HaraldG> It shouldn't be hard to write something to do that.
20:04 <shavenger> mmh
20:04 <shavenger> ok thx for your reply
20:12 <shavenger> I'll see what I can do by hand
20:12 <shavenger> see you...
20:13 <HaraldG> Try something like:
20:13 <HaraldG> filter(list, pred) := block([result : []],
20:13 <HaraldG> map(lambda([x], if pred(x) then result : cons(x, result)), list), result);
20:14 <HaraldG> To get your predicate you'll need lambda.
20:15 <shavenger> thank you
20:15 <shavenger> I'll try tat
20:15 <shavenger> that
20:15 <HaraldG> No problem.
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