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During Wiscon, I looked at someone's t-shirt, and realized "I've forgotten integral calculus!" (It had a very simple integral on it.) I thought that maybe I was just tired, but I've more or less caught up on sleep, and I think I have forgotten integrals. Maybe all of calculus, I haven't tried to do anything with derivatives in the last week.
So, can anyone recommend a decent refresher? Online by preference, to save money and space.
(I could post it as an AKICIF on news:rec.arts.sf.fandom, but there are two threads at least arguing over math teaching, public schools, and similar matters at the moment, and I suspect I'd get more heat than light.)
I remember sitting in calculus class, and learning to read Bruce's mirror writing, and not thinking much of the teacher. I remember the odd sensation of slogging through problems and tests on sheer brute force memorization, and then going "aha!" three weeks into the next unit, over and over. But I don't remember the material itself.
So, can anyone recommend a decent refresher? Online by preference, to save money and space.
(I could post it as an AKICIF on news:rec.arts.sf.fandom, but there are two threads at least arguing over math teaching, public schools, and similar matters at the moment, and I suspect I'd get more heat than light.)
I remember sitting in calculus class, and learning to read Bruce's mirror writing, and not thinking much of the teacher. I remember the odd sensation of slogging through problems and tests on sheer brute force memorization, and then going "aha!" three weeks into the next unit, over and over. But I don't remember the material itself.