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Derivative of Undefined Function

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Derivative of Undefined Function

I'd like to do calculus on some functions without defining them. When I do this, I don't always get the correct answers. What's the correct way to do this?

Derivative+of+Undefined+Function.png

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1 REPLY 1

Re: Derivative of Undefined Function

This looks like a bug which is already present in Mathcad, too.

1.png

BTW, if you want to avoid the red errors, which stem from the numeric processor, you can add the function name f as argument of your functions.

2.png

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