Re: Symbolic85


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Re: Symbolic85



In article <32744926.6CB2@davlin.net>, Craig &amp; Brandee <bracra@davlin.net>
writes:


>This is just a quick question on the machine.  If I graph y1=x^2 then
>graph y2=der1(y1,x) it obviously gives me a parabola and the derivative
>( a straight line).  OK, is there any possible way with the calculator
>to make it display a formula for the function of y2.  Could this be
>achevied with the Strings in the calc?  Could this be a half-ass
>symbolic solver? Am I bariking up a non existant tree?  Any Ideas or
>insights would help. I am not a CS major so please be kind.
>
>


No, the 92 will, however.  But a simple way to do it is this:


                 a * x ^ n    (a times x to the nth power, where a and n
are any number, not variables)
derivate = n * a * x ^ (n-1)


You do this for as many terms you have in it.  Remember 1 / x^n = x^-n  (1
divided by x to the nth power is equal to x to the negative nth power) and
a plain number drops out (because it's an x^0 term)


Anyway, hope it helps.  Take calculus if you want to learn more about
this.


~Andrew Bishop
~AKBishop@aol.com
~Computer Consultant - CyberGuide@juno.com


References: