pftq.com
October 3rd, 2007
Posted by pftq

Derivative Tool

Finally studying Calculus - might be a surprise to a few of you who don’t know me that well. The teacher went through with some overly long processes on how to find the derivatives; for those interested, I also wrote a program to find/estimate the derivative (check your work? :P ).

Of course, it will not be 100% accurate (answers are in decimal). It will not determine whether derivatives exist or not (it assumes they do) and it will not find derivatives of infinite slope (it should return a 1/0 error though, which can be assumed to be infinite). Finally, a few rarer functions may have sign switches, so I’ve added an Apply +/- option for these cases.

All the math tools on the site now accept trig, powers, and roots.

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