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gparaiso1-Visitor
1-Visitor
July 21, 2016
Question

Will not pull values from array

  • July 21, 2016
  • 3 replies
  • 1465 views

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Hi, for some odd reason Mathcad 15 is not pulling from the "enx array" despite that array having values in these indicies.  Is it because the derivative? Anyway I can fix this?

Thanks

3 replies

W
Werner_E25-Diamond I
25-Diamond I
July 22, 2016

You should post the worksheet, if possible.

R
RichardJ19-Tanzanite
19-Tanzanite
July 22, 2016

It has nothing to do with the derivative.

It's hard to debug a picture, so please post a worksheet. Making a wild guess, what is the value of N, and how many rows does enx have?

A
AndyWesterman12-Amethyst
12-Amethyst
July 22, 2016

What happens if the condition:

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is not met?

If it is in any case from 0 to N-1 then the individual element will default to a 0 result:

Capture.PNG

If , however , it is the last element, then the array will be 1 entry short:

Capture.PNG

As the next calculation is looking for enx[N which does not exist, Mathcad reports an error.

Regards

Andy

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