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The current method of calculating variance (and, by extension, standard deviation) is intended for sets that form the _whole_ population. When dealing with a sample, i.e. you pick _n_ elements out of …
ORBAT updated
9 years ago
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i need a low-pass bessel filter. anyone happen to have one they could contribute?
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This is a metaticket listing **existing** functions for which symbolic implementations are urgently needed because
* they exist in Sympy, Maxima, or Fricas symbolically, and might be returned as res…
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I just tried to use SciPy's error function, and Astropy politely requested that I raise this issue here:
```Python
>>> from astropy import units
>>> from scipy.special import erf, erfc
>>> r1 = 5*…
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**Describe the bug**
Some of the Bessel function tests in `core/unit_test/TestMathematicalSpecialFunctions.hpp` are failing on `HIP`.
This has been a known failure for a while, which has been tr…
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When evaulating the zeroth-order Hankel function of second kind at zero
```
In[121]: scipy.special.hankel2(0,0)
Out[121]: (nan+nan*j)
```
the real value is nan instead of 1. Bessel and Neumann funct…
spors updated
9 years ago
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For each model, list the range of q, r, etc. for which the model is accurate to within epsilon.
Use the same epsilon across the models (e.g., 5e-5 for single precision, 5e-10 for double precision).…
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Ntilda calculation from Fred below:
"From the continuity equation, one would think that ntilda should look like div(Je) which would be noisier than E itself. But in looking at it more closely, I s…
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Here is a plot of the generated 1D sinc filter kernel.
![sinc looks right](https://user-images.githubusercontent.com/23273466/180662291-36bf67b1-bdcd-475d-99f3-4acec741186a.png)
Here is a plot of …
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This shows us the effect of averaging across 1.4Khz and 3s. I was wondering if it is not a good idea to meet some one who specializes in VLBI so that we could really know the idea of the re-sampling c…