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## System of equations  8-Gravel

## System of equations

I need a little help. Why isn't this working... How am I supposed to solve the system (except using a matrix without units or even this method but without units)

1 ACCEPTED SOLUTION

Accepted Solutions  24-Ruby V
(To:DrilonShabani)

The problem is that Mathcad can't display a matrix or vector where the elements have different dimensions. This is exactly what your find command would force Mathcad to so (beta is of dimension length^-1, but the other elements are of dimension force*length^-1 (or mass*time^-2)).

The solution is not to evaluate the find command but to assign its results to a vector of variables which then can be displayed singly: P.S.: Its not necessary to move the guesses to the top - I just did because I am used to

3 REPLIES 3  24-Ruby V
(To:DrilonShabani)

The problem is that Mathcad can't display a matrix or vector where the elements have different dimensions. This is exactly what your find command would force Mathcad to so (beta is of dimension length^-1, but the other elements are of dimension force*length^-1 (or mass*time^-2)).

The solution is not to evaluate the find command but to assign its results to a vector of variables which then can be displayed singly: P.S.: Its not necessary to move the guesses to the top - I just did because I am used to  8-Gravel
(To:Werner_E)

Perfect.

Thank you very very much.  23-Emerald III
(To:DrilonShabani)

And for a more generic solution you could do: Then with: You get: Success!
Luc 