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SOLVED
Regular Member

## Problem Static

`Good afternoon group friends, I am a beginner in Mathcad, and I am not able to finish a static problem, if you can help me, thank you very much.`

1 ACCEPTED SOLUTION

Accepted Solutions

## Re: Problem Static

What did you expect? You have not defined x and y so you cannot expect a numeric result.

You may let Prime evaluate symbolically, though.

15 REPLIES 15

## Re: Problem Static

Due to PTC's greed, since you are using Prime version 5, many of us cannot see your problem.  Consider posting a picture version as well.

Highlighted

ok

## Re: Problem Static

`Follow the file in jpg`

## Re: Problem Static

What did you expect? You have not defined x and y so you cannot expect a numeric result.

You may let Prime evaluate symbolically, though.

## Re: Problem Static

`Werner, why the final answer did not show in "m", what I'm missing here. If you had to solve this problem through vectors would you do the same thing I did?`

## Re: Problem Static

That is due to your definition. You defined rp as rp:=[x y 0] m. This means that x and y, like 0 are just numbers, without units. I would be rp that contains x m, y m and 0 m.

If you're interested, you might try to find out what happens if you define rp as rp:=[x y 0] and then solve x and y.

Success!
Luc

## Re: Problem Static

`Thanks LucMeekes, but I did not quite understand the answer, rp = [x y 0] m is different from rp = [xm ym 0m]. I used it the way it said and it did not work, could you please give a practical example.`

## Re: Problem Static

Attached is Prime 4 file, readable with 5