4
votes
why replacement does not work with centerdot
The key difference is that MemberQ[Attributes[NonCommutativeMultiply], Flat] == True while Attributes[CenterDot]=={}.
You can ...
- 6,551
3
votes
How to generate conditions before evaluating integral
Much easier and free from any ambiguity is to start with a definite integral
Integrate[E^((a-b)*t), {t, 0, x}];
Then, if needed we can take a limit:
...
- 19.7k
2
votes
How to generate conditions before evaluating integral
Here's a cute way to implement the antiderivative approach in my comment below:
...
- 245k
1
vote
How to generate conditions before evaluating integral
You must specify the condition in the integral. Consider:
Integrate[E^((a - b) x), x, Assumptions -> a == b]
x
However, if you set a==b after the integral is ...
- 56.3k
1
vote
Accepted
Understanding the Error: "DSolve: Arguments should be ordered consistently"
By the construction of the algorithm DSolve for a PDE, all unknown functions have to be functions of the complete set of variables. If a function does not depend on on a specified variable, say $t \in ...
- 4,628
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