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How to define unknown variable in matrix and solve it?

MU_9991978
1-Newbie

How to define unknown variable in matrix and solve it?

I have matrix 

 

 

 

A=    1   b

           0  1

 

how can i use mathcad prime 5 to solve it for b?

 

3 REPLIES 3
LucMeekes
23-Emerald I
(To:MU_9991978)

You have

LucMeekes_0-1626591721353.png

To solve for b you need to know a property of the matrix, such as:

1. What it contains:

LucMeekes_1-1626591828094.png

2. The total sum of elements.

LucMeekes_2-1626591876997.png

3. Its determinant.

LucMeekes_3-1626591930323.png

(Apparently any value of b  will do here)

LucMeekes_4-1626591966650.png

(or none)

Or your matrix is part of an equation such as:

LucMeekes_0-1626602766105.png

 

 

Success!
Luc

 

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@Fred_Kohlhepp  The forum experiences quite an amount of spam postings. The text bodies usually are copied from various sources from the inet and seem to be triggered by key words in the initial posting. So they look at first sight as if the are legitimate answers. Usually they contain a link at the end (the only reason for the post anyway) and sometimes this links is only added after a while (probably to trick moderation).
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