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gracespeakss11-Visitor
1-Visitor
December 13, 2017
Solved

Confused about units in D(t,X) for AdamsBDF

Please looking at the function in adamsBDF, why is it red?

 

Thanks

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Fred_KohlheppAnswer
23-Emerald I
December 13, 2017

Not sure why it's red, but

 

shouldn't D(t,u) have at least one "t" in it?

 

and

 

are you really calling columns of arrays?  <2>

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4 replies

Fred_Kohlhepp23-Emerald IAnswer
23-Emerald I
December 13, 2017

Not sure why it's red, but

 

shouldn't D(t,u) have at least one "t" in it?

 

and

 

are you really calling columns of arrays?  <2>

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gracespeakss11-VisitorAuthor
1-Visitor
December 13, 2017

Thanks for the prompt response.

 

its power 2

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LucMeekes23-Emerald V
23-Emerald V
December 13, 2017

The error message should tell you why it is red. What does it say?

 

Please attach the worksheet. (You may have to zip it first, there's a nasty error in this forum still, that often prevents it to recognise valid mathcad files).

 

Luc

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Fred_Kohlhepp23-Emerald I
23-Emerald I
December 14, 2017

You can use an old method and solve this in time steps

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