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solve, Matrix [3x3] ?

lvl107
20-Turquoise

solve, Matrix [3x3] ?

Hi, Everyone.
From the following:

1.PNG

The question is: How to find the solution [ A B C ] ?
Thanks in advance for your time and help.
Best Regards.
Loi.

1 ACCEPTED SOLUTION

Accepted Solutions
Werner_E
24-Ruby V
(To:lvl107)

You already asked a very similar question here

https://community.ptc.com/t5/Mathcad/Solve-Matrix-3x3/m-p/830108/highlight/true#M203184

and the solution was quite the same as here. You did not close that thread.

 

Add "fully" and "simplify", use _z for the free parameter  and it works

Werner_E_1-1666906693478.png

 

 

View solution in original post

6 REPLIES 6
LucMeekes
23-Emerald III
(To:lvl107)

Using Mathcad 11, with:

LucMeekes_0-1666902029743.png

Then:

LucMeekes_1-1666902049488.png

And if you select the fourth solution with the proper value of C:

LucMeekes_2-1666902084815.png

Then A, B and C have the values you specify, as demonstrated by:

LucMeekes_3-1666902132220.png

And of course, with those A,B, and C:

LucMeekes_4-1666902155398.png

Success!
Luc

 

P.S. In Prime 8:

LucMeekes_7-1666904238411.png

 

 

 

lvl107
20-Turquoise
(To:LucMeekes)

With my MathCad 15 then:
2.PNG

I guess your MC11 engine is better than my MC15 engine in this case, Luc.

Without MC11, I spent a lot of time to find that solution.😅

 

I still have a query: And are there any solution else ?


Best Regards.
Loi.

lvl107
20-Turquoise
(To:lvl107)

I still have a query: And are there any solution else ?

Werner_E
24-Ruby V
(To:lvl107)


@lvl107 wrote:

I still have a query: And are there any solution else ?


Look at my reply below!

For every argument you feed into the function "Sol" you get 7 different solutions. So you now have access to 7 times infinity solutions. Is that enough or is it still too few?

Werner_E
24-Ruby V
(To:lvl107)

You already asked a very similar question here

https://community.ptc.com/t5/Mathcad/Solve-Matrix-3x3/m-p/830108/highlight/true#M203184

and the solution was quite the same as here. You did not close that thread.

 

Add "fully" and "simplify", use _z for the free parameter  and it works

Werner_E_1-1666906693478.png

 

 

lvl107
20-Turquoise
(To:Werner_E)

You're right. I forgot add more "simplify":

3.PNG

Best Regards.

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