Tweets about SciPy (Scientific Python) and related topics from @JohnDCook.
Joined February 2011
- Tweets 9,117
- Following 18
- Followers 209,672
- Likes 28
212 Photos and videos
Jun 12
inspect.getsourcefile(obj) will tell you where obj's source code is, if it's available on your computer.
1
14
2,551
Jun 11
Zero-phase filtering: scipy.signal.filtfilt(b, a, x) applies forward/backward filtering to remove phase shift.
1
9
1,799
Jun 10
By convention, the SciPy library is imported as sp and NumPy is imported as np.
1
1
11
1,799
numpy.linalg.cond() estimates the condition number of a matrix. Option of several different norms.
7
1,867
Searching for proper nouns with spaCy johndcook.com/blog/2023/07/1…
6
1,359
How to plot a function with matplotlib glowingpython.blogspot.com/2…
15
2,749
scipy.fftpack.hilbert(x) returns the Hilbert transform of a periodic sequence x.
6
1,547
Real-input FFT: scipy.fft.rfft(x) returns nonnegative frequencies only; invert with scipy.fft.irfft.
7
2,403
scipy.optimize.anneal does global optimization by simulated annealing.
12
1,553
On a difficult matrix for eigenvalue solvers
tpfto.wordpress.com/2019/04/…
1
9
1,452
How trig functions differ between base Python, NumPy, and other languages johndcook.com/blog/2021/02/1…
11
1,859
sys.float_info.min is the smallest positive floating point value.
12
1,622
Matplotlib accepts TeX input everywhere it accepts text (labels, annotations, etc.)
14
2,491
FFT: prefer scipy.fft.fft / rfft over older scipy.fftpack.* for a cleaner API.
2
15
5,093