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Best answer by LouP

Here's a MCD v11 file that works on the example you gave. I don't know how robust the symbolic processor on v15 is, or whether these keywords will work. The same expansions did not work in v14.

What is strange is that when I tried to add the same keywords from my example to your file (opened in v11), they didn't work, and the expression turned red. When I copied your expression into my old example file (attached, also in v11), then the expression expanded as you are looking for.

The problem is not a new one. You may be able to find a reference that has an algebraic solution for the spurious component at a freq n1*f1+/-n2*f2 as a fct of n1 and n2.

Lou

2 replies

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Raiko17-Peridot
17-Peridot
October 5, 2010

Hello Bill,

I'm not sure what you mean by that. Presuming you'd like to "simplify" the right hand side of the equation I suggest to take only this side and use the symbolic key word "expand" followed by the variable for which you want to solve.

Cheers

Raiko

L
LouP12-AmethystAnswer
12-Amethyst
October 5, 2010

Here's a MCD v11 file that works on the example you gave. I don't know how robust the symbolic processor on v15 is, or whether these keywords will work. The same expansions did not work in v14.

What is strange is that when I tried to add the same keywords from my example to your file (opened in v11), they didn't work, and the expression turned red. When I copied your expression into my old example file (attached, also in v11), then the expression expanded as you are looking for.

The problem is not a new one. You may be able to find a reference that has an algebraic solution for the spurious component at a freq n1*f1+/-n2*f2 as a fct of n1 and n2.

Lou

B
BillDumke1-VisitorAuthor
1-Visitor
October 5, 2010

Lou,

Thank you very much! That works great!

I sure am glad I still have Mathcad 11.

Bill

A
AlvaroDíaz12-Amethyst
12-Amethyst
October 6, 2010

Lou's file for working with mathcad 15.

Regards. Alvaro.

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