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10-31-2020
11:12 AM

10-31-2020
11:12 AM

Why #1

In Prime too!

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10-31-2020
11:52 AM

10-31-2020
11:52 AM

Re: Why #1

Every function evaluated at a specific value yields a constant and then you the the derivative of that constant which has to be zero - therefore it is not suitable as an IC.

In MC15 and below, to evaluate the derivative of a function you would have to write something like

but in a solve block with odesolve

does NOT work as IC.

You must use the prime symbol.

Its a pity that in real Mathcad we can't use the prime symbol outside of a solveblock with odesolve - a small benefit of Prime, where we can do so.