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mikhailov-work / turbo_colormap.glsl
Last active Apr 2, 2021
Turbo Colormap Polynomial Approximation in GLSL
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// Copyright 2019 Google LLC.
// SPDX-License-Identifier: Apache-2.0
// Polynomial approximation in GLSL for the Turbo colormap
// Original LUT:
// Authors:
// Colormap Design: Anton Mikhailov (
// GLSL Approximation: Ruofei Du (
mikhailov-work /
Created Aug 8, 2019
Turbo Colormap Look-up Table
# Copyright 2019 Google LLC.
# SPDX-License-Identifier: Apache-2.0
# Author: Anton Mikhailov
turbo_colormap_data = [[0.18995,0.07176,0.23217],[0.19483,0.08339,0.26149],[0.19956,0.09498,0.29024],[0.20415,0.10652,0.31844],[0.20860,0.11802,0.34607],[0.21291,0.12947,0.37314],[0.21708,0.14087,0.39964],[0.22111,0.15223,0.42558],[0.22500,0.16354,0.45096],[0.22875,0.17481,0.47578],[0.23236,0.18603,0.50004],[0.23582,0.19720,0.52373],[0.23915,0.20833,0.54686],[0.24234,0.21941,0.56942],[0.24539,0.23044,0.59142],[0.24830,0.24143,0.61286],[0.25107,0.25237,0.63374],[0.25369,0.26327,0.65406],[0.25618,0.27412,0.67381],[0.25853,0.28492,0.69300],[0.26074,0.29568,0.71162],[0.26280,0.30639,0.72968],[0.26473,0.31706,0.74718],[0.26652,0.32768,0.76412],[0.26816,0.33825,0.78050],[0.26967,0.34878,0.79631],[0.27103,0.35926,0.81156],[0.27226,0.36970,0.82624],[0.27334,0.38008,0.84037],[0.27429,0.39043,0.85393],[0.27509,0.40072,0.86692],[0.27576,0.41097,0.87936],[0.27628,0.42118,0.89123],[0.27667,0.43134,0.90254],[0.27691,0.44145,0.913
cosmoscalibur / anaconda_pyinstaller
Last active Aug 6, 2018
Minimal example of PyInstaller with Python Anaconda in Linux
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conda create -y -n pyinstaller python=3.6
conda activate pyinstaller
pip install pyinstaller
echo 'print("hola mundo")' >
pyinstaller --onefile
franktoffel / NikolaWindows
Created Jun 19, 2016
How to install Nikola on Windows with Anconda-conda env
View NikolaWindows
conda create --name nikolaenv python=3
activate nikolaenv
conda install pillow lxml
pip install Nikola[extras]
nicoguaro /
Last active Nov 6, 2019
Generate videos from a sequence of images with consecutive numbering
# Generate an animation (.avi, .gif) from a sequence of image with
# the same name and a sequence of numbers.
mencoder "mf://*.png" -mf type=png:fps=5 -ovc lavc -o vid.avi
convert img*.png -delay 20 -loop 0 -channel Alpha vid.gif
rm img*.png
cosmoscalibur / arbitrary_args
Created Sep 30, 2013
If you need a function with arbitrary args you can use kwargs dictionary and exec statement over its items. If 'f' is not a builtin function you need to add from module import function in this auxiliar module.
View arbitrary_args
def eval_fun(f, **args):
''' (str, dict) -> object
f: Function as string.
args: dictionary with arbitrary variables.
Use arbitrary args in **args to eval general functions.
>> eval_fun('x**2',x=5)
>> eval_fun('x*y', x=3, y=2)
jboner / latency.txt
Last active Apr 16, 2021
Latency Numbers Every Programmer Should Know
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Latency Comparison Numbers (~2012)
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
fperez /
Created Jan 8, 2012
IPython 0.0.1, a simple script to be loaded as $PYTHONSTARTUP: of historical interest only...
#!/usr/bin/env python
Interactive execution with automatic history, tries to mimic Mathematica's
prompt system. This environment's main features are:
- Numbered prompts (In/Out) similar to Mathematica. Only actions that produce
output (NOT assingments, for example) affect the counter and cache.
- The following GLOBAL variables always exist (so don't overwrite them!):
_p: stores previous result which generated printable output.