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## how to simplify an expression with both variables and numbers

Hi All,

This is my first time using Mathcad...... I have this problem which seems to be not hard, however I just can't figure out..........

Would anyone like to help me out here? I've include text explanation of my problem in the attached file.

Mingyu

1 ACCEPTED SOLUTION

Accepted Solutions

## Re: how to simplify an expression with both variables and numbers

Here's a screenshot:

I've attached a pdf printout (though you will have to line up pages 3 and 4 with 1 and 2 respectively.

Alan

14 REPLIES 14

## Re: how to simplify an expression with both variables and numbers

Does the attached help?

Alan

## Re: how to simplify an expression with both variables and numbers

Thank you, Valery. Reminds me that I need to make expression as function of unspecified variables.

## Re: how to simplify an expression with both variables and numbers

I runned your attached file but yours stopped at the calculation of C with no result.

This happened to my original file as well, but mine gave me something as below. It just fails to extract the imaginary part of Ztot.....It doesn't make sense to me as it's able to get the real part....

## Re: how to simplify an expression with both variables and numbers

Hard to be sure without seeing the file, but if you click on Im(Ztot) you will probably see a multiplication between the Im and the parenthesis, so it sees Im as a variable, not a function name.

## Re: how to simplify an expression with both variables and numbers

Richard,

Thank you for the reminder......But why does this happen and how to correct this? This pic is what happened when I tried to extract the imaginary part.... I attached my file. Could you help me correct it please? Thanks a lot.

## Re: how to simplify an expression with both variables and numbers

I don't see this problem. What version of Mathcad are you using?