| """ | |
| Collection of functions related to musical consonance, Just intonation, etc. | |
| """ | |
| from fractions import Fraction | |
| from math import log | |
| from functools import reduce | |
| def product(*iterable): |
| Needs to handle all these situations. Make them happen and get a useful result from each | |
| errors from single-shot command is different from interactive session | |
| more complex than just returning stripped version: | |
| 'conformability error: g = 0.001 kg and m = 1 m' | |
| 'reciprocal conversion: 1 / s = 1 Hz and 1 / s = (1 / 1) Hz' | |
| Can't just do this for multiple lines or you will get | |
| 'g = 0.0022046226 lb: g = (1 / 453.59237) lb and' | |
| * "Successful completion" |
| # Custom unit definitions for GNU Units | |
| # http://www.gnu.org/software/units/ | |
| # The bel was defined by engineers of Bell Laboratories to describe the | |
| # reduction in audio level over a length of one mile. It was originally | |
| # called the transmission unit (TU) but was renamed around 1923 to honor | |
| # Alexander Graham Bell. The bel proved inconveniently large so the decibel | |
| # has become more common. It is used in various to contexts to report a | |
| # signal's power relative to some reference level. |
| #!/usr/bin/env python | |
| """Some utilities for working with the web browser | |
| function call_browser(url) opens url in the user's default browser | |
| function browser_render(html) sends HTML to the user's default browser for display | |
| """ | |
| import tempfile |
| function [frequency, period, crossings, seconds, samples]=freq(wavefile, siz) | |
| % FREQ Measures frequency of mono .WAV files by counting zero crossings | |
| % | |
| % [frequency, period, crossings, seconds, samples]=freq(wavefile, siz, fmt24bit) | |
| % | |
| % frequency : in hertz | |
| % period : in seconds | |
| % crossings : the total number of zero crossings | |
| % seconds : total amount of time between first and last zero crossing |
| # | |
| # Money | |
| # | |
| # Note that US$ is the primitive unit so other currencies are | |
| # generally given in US$. | |
| # | |
| $ dollar | |
| mark germanymark | |
| bolivar venezuelabolivar |
It's been a long time since I used this, and I don't remember its purpose. I think it's for writing a binary file to an EEPROM, when the chip reading that EEPROM expects the bits in reversed order.
flip_bits.py can be used on a file directly, as well, though in the context of the script it just operates on temporary files:
python flip_bits.py infile outfileI'm sure this could be done with a very simple C command line tool instead. But hey, it works.
| #!/usr/bin/env python | |
| # -*- coding: utf-8 -*- | |
| """ | |
| Translated from a MATLAB script (which also includes C-weighting, octave | |
| and one-third-octave digital filters). | |
| Author: Christophe Couvreur, Faculte Polytechnique de Mons (Belgium) | |
| couvreur@thor.fpms.ac.be | |
| Last modification: Aug. 20, 1997, 10:00am. | |
| BSD license |
| #!/usr/bin/env python | |
| import os | |
| # I often find myself opening a lot of PDFs, copying and pasting the title of | |
| # the paper, and renaming the file. Often these names have newlines in them, | |
| # though, so this script renames them with spaces instead of newlines. | |
| for name in os.listdir(os.curdir): | |
| if '\n' in name: | |
| new_name = name.replace('\n', ' ') |
| *GROUP* | |
| Math | |
| pi | |
| 3.141592653589793238462 | |
| *GROUP* | |
| Physics | |
| c (m/s) | |
| 299792458 | |
| Boltzman's constant (J/K) | |
| 1.380658*10^-23 |