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I'm trying to run inverse fourier transform after running fourier transform (using code below) and I expect to get back the same results input to fourier transform. Am I missing something?
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It is not clear that shape measurement weights are being used properly in SourceSelector (when calculating catalog-wide means) and when generating weighted maps.
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Hello all,
I recently discovered imager and I am very eager to try. I am running R version 3.6.1.
I want to apply different filters to a set of images. However, I am having problems getting the…
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**Describe the bug**
ForecastingPipeline only passes y to the first N transformers as long as all need y in predict. If one transformers does not need y, then the next transformer in the pipeline wil…
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I am generating k-space data using the Ellipses phantom and performing direct reconstruction to obtain a fully sampled image, which serves as the ground truth from which I want to retrospectively simu…
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The aim of this issue is to document the implementation of the galsim Fourier transform in TF used in the beginning of the [demo notebook](https://github.com/DifferentiableUniverseInitiative/GalFlow/b…
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Hi, I do not know FFT in depth. I just need a fast, open source inverse FFT implementation. I have tested 3 implementations:
1. Math.NET Fourier.Radix2Inverse : the slowest for the small data (1024…
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我试了试SymPy,发现好多函数的傅里叶变换都算不出来。常数函数与符号函数的傅里叶变换也算不出来(捂脸)。如果SymPy可以在这些信号处理的问题上做出一些改进,我将感激不尽!感谢你们!
I've tried SymPy, but I found that the Fourier transforms of many functions could not be calculated. Sim…
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both the functions `fourier_transform` and `_fourier_transform` give the (same but) wrong result, when applied to the function `sin(x)**2/x**2`. Here is the sample code:
```python
from sympy.abc i…
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**Is your feature request related to a problem? Please describe.**
Implement FFT multiplication to speed up the library.
**Describe the solution you'd like**
Implement FFT multiplication algorith…