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rking-21-Visitor
1-Visitor
December 21, 2015
Solved

Help with implicit differentiation.

I am trying to use MathCad Prime to solve an implicit differentiation but I have no idea how I could do it.

It seems to only solve a normal differentiation (functions).

Example (circle equation):

x^2+y^2=25

dy/dx=-x/y

How do I get MathCad Prime to work properly with implicit differentiation?

Thanks!

Werner_E
Werner_EAnswer
25-Diamond I
December 21, 2015

I have seen that second post too late - please don't crosspost!

-> Solved: Implicit derivative? - PTC Community

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4 replies

MJG1-Visitor
1-Visitor
December 21, 2015

Use symbolics to solve for y, then take the derivative.

See attached for an example problem.

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RichardJ19-Tanzanite
19-Tanzanite
December 21, 2015

Please don't post the same question twice. It means answers can get split between two threads.

It's not clear to me exactly what you want to solve for. Please clarify.

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Werner_E
Werner_E25-Diamond IAnswer
25-Diamond I
December 21, 2015

I have seen that second post too late - please don't crosspost!

-> Solved: Implicit derivative? - PTC Community

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rking-21-VisitorAuthor
1-Visitor
December 21, 2015

Thank you all, I will be more careful to publish my questions.

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