Compute divergence of vector field using python

by

Just a hint for everybody reading that:

the functions above do not compute the divergence of a vector field. they sum the derivatives of a scalar field A:

result = dA/dx + dA/dy

in contrast to a vector field (with three dimensional example):

result = sum dAi/dxi = dAx/dx + dAy/dy + dAz/dz

Vote down for all! It is mathematically simply wrong.

Cheers!

More Related Contents:

  1. How do I read CSV data into a record array in NumPy?
  2. Working with big data in python and numpy, not enough ram, how to save partial results on disc?
  3. Python out of memory on large CSV file (numpy)
  4. python numpy/scipy curve fitting
  5. Multiple linear regression in Python
  6. Plotting a fast Fourier transform in Python
  7. matplotlib – extracting data from contour lines
  8. Fitting a Normal distribution to 1D data
  9. Populate a Pandas SparseDataFrame from a SciPy Sparse Matrix
  10. Installing NumPy and SciPy on 64-bit Windows (with Pip)
  11. How to extend an array in-place in Numpy?
  12. How do I install SciPy on 64 bit Windows?
  13. Interpolation over an irregular grid
  14. fitting exponential decay with no initial guessing
  15. Overflow Error in Python’s numpy.exp function
  16. How to plot line (polygonal chain) with numpy/scipy/matplotlib with minimal smoothing
  17. How can I efficiently process a numpy array in blocks similar to Matlab’s blkproc (blockproc) function
  18. How do I plot list of tuples in Python?
  19. generalized cumulative functions in NumPy/SciPy?
  20. Principal component analysis in Python
  21. How to convert a column or row matrix to a diagonal matrix in Python?
  22. How to do a polynomial fit with fixed points
  23. Is the order of a Python dictionary guaranteed over iterations?
  24. How to smooth a curve for a dataset
  25. How to transform numpy.matrix or array to scipy sparse matrix
  26. Matplotlib – Finance volume overlay
  27. sparse 3d matrix/array in Python?
  28. Convert Pandas dataframe to Sparse Numpy Matrix directly
  29. Structure of inputs to scipy minimize function
  30. ValueError: Dimension mismatch

Leave a Comment