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richardm551-Visitor
1-Visitor
July 18, 2019
Solved

I get an error message in mathcad function (programming)

  • July 18, 2019
  • 2 replies
  • 1962 views

I have created function in mathcad 15 and I get an error message. I have checked all arguments, non of them is matrix or vector, just variable with single number.

Maybe I am not allowed to define the same variable in the same function as I have done with Ie2_hs?

 

Thank you in advance for any help and advice. I will attach mathcad file next time if needed.

Best answer by Werner_E

Luc already mentione R1_hs as a row vector.

I.oad1 is such a vector, too as seems to be V.PSU1.

I guess that you are aware that these variable are vector (obviously indicating some tolerance) and you thought that by chosing the column number 1 of these vector would give you the center element. But what you get by doing so is a 1x1 vector/matrix, hence the error message.

 

Replace all occurrences of    variable^<1>   (column selector) by      variable[0,1    (matrix element select via indices) and the error should go away.

2 replies

L
LucMeekes23-Emerald IV
23-Emerald IV
July 18, 2019

I.loadi is a matrix, one row, three columns, but it's a matrix.

In the program you pick one column of this matrix. This gives you a vector, one element, but it's a vector.

Hence the complaint.

 

Success!
Luc

W
Werner_E25-Diamond IAnswer
25-Diamond I
July 18, 2019

Luc already mentione R1_hs as a row vector.

I.oad1 is such a vector, too as seems to be V.PSU1.

I guess that you are aware that these variable are vector (obviously indicating some tolerance) and you thought that by chosing the column number 1 of these vector would give you the center element. But what you get by doing so is a 1x1 vector/matrix, hence the error message.

 

Replace all occurrences of    variable^<1>   (column selector) by      variable[0,1    (matrix element select via indices) and the error should go away.

R
richardm551-VisitorAuthor
1-Visitor
July 19, 2019

Thank you very much for your help. It works now.

Yes, you are right I thought with ^ I can select element in the one row  matrix and I did not realize that for element selection I should use matrix indices.

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