11
votes
Accepted
Mathematica 13.0 simplifies trigonometric integral wrong
It's not too uncommon for Integrate to return something which has a special case that can't be evaluated properly without taking a limit. In your case there is a ...
- 19.2k
9
votes
Integral of orthogonal Bessel functions
The OP's integral is missing information about the subscripted variables (which I avoid) and the change of coordinates leading to the interval from b to ...
- 213k
8
votes
Mathematica 13.0 simplifies trigonometric integral wrong
Here's a way to eliminate the singularities in the answer, provided you can be happy removing a singularity of the form Sin[u]/u with ...
- 213k
4
votes
Accepted
Plotting, Integrating two variable function with cross-restricted domain
For the plot you can use RegionFunction, which takes a pure function which takes x, y, and z values::
...
- 123k
3
votes
Accepted
Integration over an implicit region
You want the region of integration to be defined by inequalities, rather than equalities. Your region can be described as follows:
...
- 58.4k
2
votes
2
votes
Mathematica 13.0 simplifies trigonometric integral wrong
Under natural assumptions one obtains
...
- 16.7k
2
votes
Symbolic scalar-by-matrix derivative
I tried the NCAlgebra package:
<< NC`;
<< NCAlgebra`;
SNC[X, A]
NCGrad[tr[tp[tp[X] ** A] ** (tp[X] ** A)], A]
And ...
- 1,626
2
votes
Getting the same result from Integrate as Probability
Got it figured out, Mathematica just wants some assumptions about the integration variables and needs GenerateConditions->False:
...
- 819
1
vote
Numerical Plot for an example
When we use NDSolveValue, the result sol is the interpolation function. It is difference to ...
- 30.6k
1
vote
Accepted
Integrate: slow and wrong results
To investigate what's happening during the integration try using EvaluatioMonitor or StepMonitor.
- 26
Only top scored, non community-wiki answers of a minimum length are eligible