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BM_98543931-Visitor
1-Visitor
Jun 13, 2024 9:26 PM UTC
Solved

For loop

I have defined function with "for loop" inside for table content processing. It looks simple, but unfortunately it doesn't work. Instead of calculation results , the message  "This value mus be a scalar a matrix" is being displayed.

I was using this function with Mathacad 15 and it was working fine, but I can't reproduce it within Mathcad Prime 8.

Where did I go wrong?

 

Regards,

Bogdan

Werner_E
Werner_EAnswer
25-Diamond I
Jun 13, 2024 11:35 PM UTC

ttokoro already pointed you to the error.

You had an implicit multiplication between "(rows)" and "N.t.".

Werner_E_0-1718321442123.png

It should read "rows(N.t.)" instead!

Werner_E_1-1718321488969.png

Now you should get the expected result:

Werner_E_2-1718321563067.png

You can achieve the very same result without any utility function in one go using a boolean comparison and vectorisation

Werner_E_3-1718321606367.png

Another option is using a simpler utility function, written to be used with just one scalar and called vectorized.

Here are two example for that kind of utility function

Werner_E_0-1718322135229.png

 

 

 

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4 replies

ttokoro
ttokoro21-Topaz I
21-Topaz I
Jun 13, 2024 10:06 PM UTC

image.png  rows(Nt)

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t.t.
    ppal_25568718-Opal
    18-Opal
    Jun 13, 2024 10:08 PM UTC

    Maybe try

    ppal_0-1718316473348.png

     

    Translate
      Werner_E
      Werner_E25-Diamond IAnswer
      25-Diamond I
      Jun 13, 2024 11:35 PM UTC

      ttokoro already pointed you to the error.

      You had an implicit multiplication between "(rows)" and "N.t.".

      Werner_E_0-1718321442123.png

      It should read "rows(N.t.)" instead!

      Werner_E_1-1718321488969.png

      Now you should get the expected result:

      Werner_E_2-1718321563067.png

      You can achieve the very same result without any utility function in one go using a boolean comparison and vectorisation

      Werner_E_3-1718321606367.png

      Another option is using a simpler utility function, written to be used with just one scalar and called vectorized.

      Here are two example for that kind of utility function

      Werner_E_0-1718322135229.png

       

       

       

      Translate
        BM_98543931-VisitorAuthor
        1-Visitor
        Jun 14, 2024 4:25 AM UTC

        Thank you for all advices, issue is solved.

         

        Regards,

        Bogdan

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