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Werner_E
Werner_EAnswer
25-Diamond I
Jul 21, 2022 10:25 PM UTC

Primes auto-labelling, especially in connection with units and symbolic evaluation most of the time is a PITA.

But in case of your problem, the simple solution is to turn on "Units/Constants in Symbolics" in the calculation options.

B1.png

You can leave your worksheet unchanged otherwise - despite changing P.y to C.y of course:

B2.png

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4 replies

LucMeekes23-Emerald V
23-Emerald V
Jul 21, 2022 7:37 PM UTC

You define Ay(t) and Cy(t), and want to plot Py(t),,,?

 

Success!
Luc

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FC_1003739110-MarbleAuthor
10-Marble
Jul 21, 2022 7:40 PM UTC

My bad it is Cy(t) against t. I also tried to add the units but still getting the error 

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LucMeekes23-Emerald V
23-Emerald V
Jul 21, 2022 8:03 PM UTC

OK. You're using symbolic evaluation in your definitions of Ay and Cy. Prime is capable of such things, but (too) often creates a mess.

LucMeekes_1-1658433807587.png

 

See how some of your units remain units (bold blue italic) and some don't.

The better way to work with symbolics is to stay symbolic until you need to input values. Something like this:

LucMeekes_0-1658433587747.png

Success!

Luc

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Werner_E
Werner_E25-Diamond IAnswer
25-Diamond I
Jul 21, 2022 10:25 PM UTC

Primes auto-labelling, especially in connection with units and symbolic evaluation most of the time is a PITA.

But in case of your problem, the simple solution is to turn on "Units/Constants in Symbolics" in the calculation options.

B1.png

You can leave your worksheet unchanged otherwise - despite changing P.y to C.y of course:

B2.png

Translate
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