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taylor351-Visitor
1-Visitor
February 14, 2010
Question

array

  • February 14, 2010
  • 2 replies
  • 3861 views
Im new to MathCad and im trying to find the fourth roots of -16j. I typed this in exactly like this and mathcad said that I have to have the -16 in an array. Any help would be great thanks

2 replies

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ValeryOchkov24-Ruby IV
24-Ruby IV
February 15, 2010
On 2/14/2010 7:30:45 PM, taylor35 wrote:

>to find the fourth
>roots of -16j.
May by so:

Val
http://twt.mpei.ac.ru/ochkov/v_ochkov.htm
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ValeryOchkov24-Ruby IV
24-Ruby IV
February 15, 2010
Sorry for my english forth is 4-th not 5-th!
Val
http://twt.mpei.ac.ru/ochkov/v_ochkov.htm
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TomGutman1-Visitor
1-Visitor
February 15, 2010
Perhaps you could post the sheet with the problem. -16j is a perfectly valid number (pure imaginary) and does not need any arrays. I suspect that that is not exactly what you typed. Perhaps you have attempted to define j (not a good idea) and used multiplication (rather than a scale modifier). Can't really tell without the sheet with your error.
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Anonymous
February 15, 2010
See attached for a couple of options.

stv
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TheodoreM.Bones1-Visitor
1-Visitor
February 15, 2010
Instead of tweaking MathCad, why not just stick to fundamental algebra or calculus in polar coordinates?
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