Tagged Questions
1
vote
2answers
74 views
How to take conjugate of a function?
Naïvely this is what happens and it obviously is not helpful!
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0
votes
1answer
85 views
Simplifying Complex Numbers that contain physical units
I am trying to evaluate the following:
Simplify[Meter Nano Re[(a + I b)/(Meter Nano)], Assumptions -> Element[{a, b}, Reals]]
However, Mathematica returns:
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0
votes
1answer
190 views
Get Mathematica to simplify $\cosh(i x)$
I want Mathematica to simplify Cosh[I x] to Cos[x] if I tell Mathematica that x is Real.
I ...
8
votes
1answer
374 views
Is it possible to set a variable as a positive one in the whole notebook?
I'm having issues during integration due to the fact that Mathematica doesn't know if an undefined variable is positive or not (it gives me complexes which bothers me in the end).
For example I do ...
4
votes
1answer
364 views
Does the Im function work with symbolic arguments?
Does the Im function work with symbolic arguments?
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9
votes
2answers
1k views
How to specify assumptions before evaluation?
If I request mathematica evaluate an integral for me, I'll often get a more general ConditionalExpression than I want. Example :
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