numpy

Generate Log-Normal Signals with Blue/Violet PSD: Why Exponentiation Fails and IAAFT Works

Oct. 31, 11:00

Convert a binned detector grid to polar coordinates: theta–radius scatter sans cos(theta) pitfalls

Oct. 29, 13:00

Keras Dense vs NumPy Matmul: Why GPU/CPU Paths Cause 1e-5 Differences and How to Match Results

Oct. 28, 05:00

NumPy Indexing Pitfalls: Chained Slicing vs Advanced Indexing, Views vs Copies, In-Place Writes

Oct. 26, 09:00

Block GMRES for Multiple Right-Hand Sides: Fixing the Least-Squares Setup with Residual QR

Oct. 25, 03:00

Fitting cos^2(x) with Gaussian Peaks: Why scipy curve_fit Fails and How find_peaks Fixes It

Oct. 22, 13:00

Fixing FFT-based Angular Spectrum Propagation: Step Size and Gaussian Beam Accuracy at Long Range

Oct. 20, 07:00

Persisting NumPy Arrays in PostgreSQL: tobytes vs msgpack-numpy for Shape/Dtype Handling

Oct. 19, 13:00

NumPy object arrays from Python lists: zero-copy limits, dtype=object, np.asarray(copy=False)

Oct. 18, 15:00

Fixing pyarrow on AWS Lambda Python 3.11: glibc 2.26 wheel issues, numpy pinning, proven fixes

Oct. 18, 04:00

Zero-Padding the Spectrum Correctly: Discrete Fourier Series Indexing, DC Bin, and Scale

Oct. 18, 02:00

CuPy vs NumPy: Fix 'unhashable ndarray' TypeError when hashing tuples for sets using tolist()

Oct. 15, 16:00

Decode 12-bit Packed Samples to Float32: Vectorized Python Reference and MATLAB Equivalent

Oct. 5, 07:00

Finding the Last Non-Zero Index in a NumPy 1D Array: Pitfalls and a Faster Numba JIT Solution

Oct. 1, 15:00

Eigenvectors of Upper Triangular Matrices in Python: Use numpy.linalg.eig for Speed and Clarity

Oct. 1, 09:00

Group and Sum Sparse Keys in NumPy: unique(return_inverse) + add.at vs. bincount Pitfalls

Oct. 1, 01:00

Find the First Match in NumPy Efficiently: Replace np.where with argmax to Cut Memory Use

Sep. 28, 05:00

NumPy dtype=object: Custom Arithmetic via Python Dunder Methods and Operator Overloading in Arrays

Sep. 27, 07:00

Align PDFium renders with image decodes: make NumPy arrays match using cv2 resizing and DPI

Sep. 26, 07:00

Trace NumPy's _multiarray_umath: mapping the shared .so to Meson build sources for debugging

Sep. 26, 03:00

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