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lvl10720-Turquoise
20-Turquoise
October 27, 2022
Solved

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.

Werner_E
Werner_EAnswer
25-Diamond I
October 27, 2022

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

 

 

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6 replies

LucMeekes23-Emerald IV
23-Emerald IV
October 27, 2022

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

 

 

 

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    lvl10720-TurquoiseAuthor
    20-Turquoise
    October 27, 2022

    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.

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    lvl10720-TurquoiseAuthor
    20-Turquoise
    October 27, 2022

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

    Translate
    Werner_E
    Werner_E25-Diamond IAnswer
    25-Diamond I
    October 27, 2022

    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

     

     

    Translate
      lvl10720-TurquoiseAuthor
      20-Turquoise
      October 27, 2022

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

      3.PNG

      Best Regards.

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