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1-Visitor
March 6, 2013
Solved

This array index is invalid for this array

  • March 6, 2013
  • 2 replies
  • 1734 views

hello

I am trying to replicate a relatively simple worksheet from:

http://www.alueurope.eu/talat/lectures/2301ex/ex81.pdf

I get the above mentioned error when typing the infromation about sectorial coordinates on the page 2. I have also attached the worksheet. How come it works for the author of the document but not for me? Is it because it is another version of MathCAD? If so how can I fix it?

Thanks in advance

Best answer by Werner_E

There are two completely different subscripts to be used in Mathcad - the literal subscript you get with the period which has no special meaning other than looking like a subscript and the vector/matrix subscript you get by typing "[" after the variable name which is meant for accesing elements of a vector or matrix. But you obviously know that, as you have used both indices in your sheet.

You have just used the wrong subscript when assigning omega[0:=2mm^2.

2 replies

Werner_E25-Diamond IAnswer
25-Diamond I
March 6, 2013

There are two completely different subscripts to be used in Mathcad - the literal subscript you get with the period which has no special meaning other than looking like a subscript and the vector/matrix subscript you get by typing "[" after the variable name which is meant for accesing elements of a vector or matrix. But you obviously know that, as you have used both indices in your sheet.

You have just used the wrong subscript when assigning omega[0:=2mm^2.

1-Visitor
March 7, 2013

Thanks! .. I didnt even notice that!

24-Ruby III
March 17, 2013

Yama Taj wrote:

...I am trying to replicate a relatively simple worksheet from:

http://www.alueurope.eu/talat/lectures/2301ex/ex81.pdf

...

Interesting materials for the study:

http://www.alueurope.eu/talat/