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ifomenko1-Visitor
1-Visitor
February 16, 2020
Solved

custom CreateMesh function of vector argument

I`m trying to create function CreateMesh.f which works with vector argument but I met some problems

CreateMesh for vector argument.png

EDIT: I found the way, but I don`t understand why the first one doesn`t work

Workaround.png

Werner_E
Werner_EAnswer
25-Diamond I
February 16, 2020

Mathcad/muPad does not know that your {x} should be a two-element vector unless you provide a two-element vector (x,y) instead of a single variable name. Thats why your first attempt fails and the second succeeds.

Furthermore "CreateMesh" is a numeric command only - its not known by the symbolic processor.

Your second approach does not use symbolics and to me its much more clearer and straight forward anyway. I would prefer it even if the first one would work 😉

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4 replies

Werner_E
Werner_E25-Diamond IAnswer
25-Diamond I
February 16, 2020

Mathcad/muPad does not know that your {x} should be a two-element vector unless you provide a two-element vector (x,y) instead of a single variable name. Thats why your first attempt fails and the second succeeds.

Furthermore "CreateMesh" is a numeric command only - its not known by the symbolic processor.

Your second approach does not use symbolics and to me its much more clearer and straight forward anyway. I would prefer it even if the first one would work 😉

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    Werner_E
    Werner_E25-Diamond I
    25-Diamond I
    February 16, 2020

    BTW, here is a modification of your first approach using symbolics, but as already written, I still would prefer your second approach.

    Werner_E_0-1581879261246.png

     

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