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Implicit differentiation on HP Prime.
12-17-2013, 05:55 AM
Post: #4
RE: Implicit differentiation on HP Prime.
(12-17-2013 05:34 AM)John P Wrote:  Thanks. I tried something similar but I could not solve for diff(y(x),x). I think results with diff(y(x),x) are pretty useless because you can't use them in farther calculations. I hope they will implement implicit differentiation i next ROM update.

Use subst() or convert the result into a string with STRING(). Then use REPLACE() and (to replace "diff(y(x),x)" with just "Yy" for example) and then convert back to a symbolic via EXPR() and continue with solving. Just make sure to add single quotes around the string before using EXPR(). You can probably automate this in a program.

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RE: Implicit differentiation on HP Prime. - Han - 12-17-2013 05:55 AM

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