Maple is about the only decent windows maths program i know of. It's very high standard and used on supercomputers etc (it has ports for mac and unix systems as well.) It's also non free so if you're on a decent OS use octave instead.
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In Windows XP the standard calculator can be turned into a scientific calculator.
Yes but it's crap for serious work. It can't handle variables, unit conversions, base conversions, logic work, all the known constants, graphs, simplifying equations... Maple and Octave can. Oh and the XP power toys give you a better calculator but... well you get what you expect from "XP power *TOY*s." Oh yeah and Maple can factorize complex equations and works to however many decimal points of accuracy you tell it to.
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and calculus (in as many dimensions as you want) and integration and sums over sigma and limits and it can handle sums that contain infinity...
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and taylors series and evaluating constants (you can use it to find pi to however many decimals you like) and trig (including the arcs and inverses) and recursive formulas and exact values (ie it can give answers of the form "sin(x)/root(2)" unless you tell it to simplify) and definite integrals and graphs in 3 dimensions and parametric curves and complex numbers and systems of equations...
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and if you call in the next ten minutes i'll throw in this free piece of soap!
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and polar coordinate work and hyperbolic trig and the binomial and hypergeometric functions and roots of polynomials and matrices...
[ October 06, 2003: Message edited by: Faust ]