New answers tagged complex
2
votes
Complex region plot
0 <= z^4 <= 16 means that Im[z^4] == 0 and 0 <= Re[z^4] <= 16. Here we using <...
- 63.3k
3
votes
Complex region plot
ComplexRegionPlot[Re[(2 z + 1)/(z + 1)] > 0 && Abs[z^4] < 16, {z, 3}]
Read @Domen's comment that there might be some problems if you use larger ...
- 9,568
1
vote
Plotting multiple lists of complex numbers
Since V 12.1 there is ComplexListPlot
Using Mr. Wizard's data
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- 47.5k
5
votes
Real zeros of complex function
Your function $\xi(k,B)$ does not depend on $B$ directly but only on $\cos(B)$, in a simple way. You can solve $\xi=0$ for $\cos(B)$ and thus find $\cos(B)$ as a function of $k$.
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- 45.9k
3
votes
1
vote
Accepted
How Not to Simplify Exponential of Log?
It depends on your answer to the question: why do you need such a representation? There are several possible answers:
It is a part of the final result and you do it to show it in a desired form in ...
- 38.6k
0
votes
How Not to Simplify Exponential of Log?
The problem was easy to solve. It is enough to use HoldForm
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- 698
8
votes
Accepted
Implementation of SINC filter using Integrate results in incorrect output
This is a bug introduced in v6. To be precise, a regression is first introduced in v5.1 or v5.2:
Then it evolves to a bug in v6:
As shown by Syed in comment above, if you just need numeric solution, ...
- 63.4k
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