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1-Visitor
April 9, 2016
Question

How to pull-out coefficient from matrix simbolically

  • April 9, 2016
  • 2 replies
  • 2914 views

Hi all

Is`it possible to pull-out some coefficient or expression from matrix to show it in more compact (readable) form?

Here I want to change representation of matrix only.

Thanks in advance

2 replies

23-Emerald IV
April 11, 2016

Are you referring to something like this:

Else, provide an example of what you're looking for.

Success!

Luc

ifomenko1-VisitorAuthor
1-Visitor
April 11, 2016

I mean the following

Factoring-out.png

19-Tanzanite
April 11, 2016

I don't think there's any way to do what you want. You can factor the matrix, but even in cases where that changes how one or more elements are displayed Mathcad does not pull the common factor(s) outside the matrix:

23-Emerald V
April 11, 2016

Igor Fomenko wrote:

Hi all

Is`it possible to pull-out some coefficient or expression from matrix to show it in more compact (readable) form?

Here I want to change representation of matrix only.

Thanks in advance

I'm not sure whether you want to automate the process or just manually adjust it.  If the latter, then you put the common factor in the units placeholder ...

Stuart

ifomenko1-VisitorAuthor
1-Visitor
April 12, 2016

Symbolic result doesn`t have unit placeholder in MathCAD 15.

23-Emerald IV
April 12, 2016

Correct.

The symbolic processor isn't aware of/doesn't handle units, it treats them as (unknown, if applicable) variables.

So with symbolic evaluation Stuart's method doesn't help you. Numerically it does.

Luc