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Dependencies in differentiation

Posted 10 years ago

How do I express (the lack of) dependencies in differentiation. I have the following

dfdt = Dt[f[t x, t y], t]

Where x and y are not functions of t. How do I tell Dt that this is the case?

POSTED BY: dave salmon
2 Replies
Posted 10 years ago

You can also use partial differentiation:

In[1]:= D[f[t x, t y], t]
POSTED BY: David Keith
Posted 10 years ago

Oh, I figured it out... Constants->{x, y}. Sorry.

POSTED BY: dave salmon
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