I hereby claim:
- I am peter-jung on github.
- I am pjung (https://keybase.io/pjung) on keybase.
- I have a public key whose fingerprint is B7C0 77CB 9C5A B947 4371 E77A 2EFB F090 9E22 0423
To claim this, I am signing this object:
/* | |
* 1:1 Lichttunnel | |
* Kuzmin 2017 | |
* code für Arduino Mega 2560 | |
* Anschlüsse wie in https://youtu.be/xOhIc03cWW4 | |
* Peter Jung (2017) | |
* 2017-10-18 | |
*/ |
bpm = 200 # Beats Per Minute (BPM) = Schläge pro Minute | |
bptakt = 4 # | |
base = :a4 | |
sc = scale(base, :aeolian) | |
takt_duration = 60.0/bpm*bptakt | |
haenschenklein = [ | |
[ [5,1], [3,1], [3,2] ], | |
[ [4,1], [2,1], [2,2] ], | |
[ [1,1], [2,1], [3,1], [4,1] ], |
sstr = ''' | |
71 4 | |
6 8 | |
3 4 16 | |
6 1 | |
3 8 | |
1 7 2 | |
8 9 | |
53 4 2 | |
4 1 9 ''' |
''' | |
check your intuition: when x is evenly distributed around 0, and x^2 are totally uncorrelated | |
''' | |
import pandas as pd | |
import numpy as np | |
x = np.random.normal(0,1,1000) | |
y = x**2 |
# leveldb json store | |
import leveldb | |
import struct | |
def i2s(i): | |
res = '' | |
while i > 255: | |
res += chr(i % 256) | |
i = i >> 8 |
''' | |
https://en.wikipedia.org/wiki/Knapsack_problem | |
''' | |
v = [1,2,3,2,10] | |
w = [2,5,7,8,15] | |
W = 22 | |
n = len(v) | |
m = [[0 for _ in range(W+1)] for _ in range(n)] | |
for i in range(n): |
# DawkinsWeasel.py | |
import random | |
chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ .,-' | |
target = 'The aim is to demonstrate that the process that drives evolutionary systems, random variation combined with non-random cumulative selection, is different from pure chance.' | |
print len(chars), len(target) | |
#b | |
def randchar(): |
import subprocess, sys | |
applescript=''' | |
tell application "System Events" | |
set processName to name of processes whose frontmost is true | |
do shell script "echo " & processName | |
end tell | |
''' | |
args = [item for x in [("-e",l.strip()) for l in applescript.split('\n') if l.strip() != ''] for item in x] | |
proc = subprocess.Popen(["osascript"] + args ,stdout=subprocess.PIPE ) | |
progname = proc.stdout.read().strip() |
''' | |
calculate annuities | |
''' | |
''' | |
annuities kernel | |
s: total amount | |
r: nominal annual rate | |
t: duration/years |
I hereby claim:
To claim this, I am signing this object: