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Originally Posted by bertopl
can't seem to post full links but a new major version of spacetime mathematics just came out today at spacetime dot us. pricey, but it looks as advanced as anything I've seen on a pda.
I would also look at math tablet at statsnow dot net. a lot cheaper but looks pretty powerful too...
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I agree, if you need something for graphing or calculus or such, SpaceTime is worth every penny. It solves equations, finds variables and does everything in simplest radical form. This program is invincible. Love it.
http://www.spacetime.us/index.htm
If you arent looking to take over the world, but just do day-to-day calculations like conversions, tips, scientific calc stuff, i suggest 1-calc
http://www.omegaone.com/calc/ppc/default.htm
There is 1-calc lite somewhere (freeware, does most things you need it to), but i cant find it anymore :-/