# Tag Info

### Why does Mathematica get the infinite sum of this representation of the taylor series of $\cos^2(x)$ wrong?

Vs 6 gets the correct result, but Wolfram $\alpha$ decides, too, that \sum_{m,n=0}^\infty \frac{ (-1)^{n+m} x^{2m+2n} }{(2n)!(2m)!} \quad \ne \quad \sum_{m=0}^\infty\left(\sum_{n=0}^\infty \frac{ ...
Accepted

### Why does Mathematica get the infinite sum of this representation of the taylor series of $\cos^2(x)$ wrong?

Expanding on the comment by @Goofy and after reading the docs we see that: "ParallelFirstToSucceed" try each method in parallel until one succeeds ...

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Accepted

### One more incorrect result of CDF

The issue seems to be with DiscreteUniformDistribution when one of the parameters is an integer and the other an undefined variable. The following all give the ...
1 vote

### Bug in Point Group Conjugacy Class Data

A temporary workaround is ...

You can do: ...

### Incrementing a random element of an array repeatedly

I don't know how to answer just in the comments, so here's a non-solution reply to your question. Is there any principle you can articulate by which one could make one's code more robust to this kind ...

### Incrementing a random element of an array repeatedly

Turns out we have a bonafide Wolfram Language bug here. With help from you all, I've pared it down to this: ...

### Incrementing a random element of an array repeatedly

I suspect this is a subtle interaction between the HoldFirst attribute of Increment and the HoldAll attribute of While. Possible Fix? Adding a semicolon inside the <...

### Incorrect results for Integrate[Cosh[x]/(Sinh[x] + Cosh[x]), x]

result is correct. Anti derivative is correct up to arbitrary additive constant. ...
Accepted

### An incorrect result of CDF

I suspect that CDF is having trouble because t isn't restricted to non-negative integers and/or the specific values of the ...
Accepted

### NCAlgebra 6.0.2 fails to compute the gradient of the trace of a simple quadratic product

This has been fixed in v6.0.3.
1 vote

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