python Programming Glossary: r0

http://stackoverflow.com/questions/16049390/plotting-orbital-trajectories-in-python

import linspace mu 132712000000 #gravitational parameter r0 149.6 10 6 0.0 0.0 v0 29.0 5.0 0.0 dt np.linspace 0.0 86400..

ode integration in python versus mathematica results

http://stackoverflow.com/questions/16222302/ode-integration-in-python-versus-mathematica-results

print The satellite's initial velocity is vx vy # r0 x y 0 # v0 vx vy 0 u0 x0 y0 0 vx vy 0 def deriv u dt.. Cos Gamma Sin Nu vy vbo Sin Gamma Sin Nu Cos Gamma Cos Nu r0 x y 0 v0 vx vy 0 7.76974 7.64389 0 s NDSolve x1'' t 2 CapitalOmega.. t Mu 2 Sqrt x1 t Pi 1 r12 ^2 x2 t ^2 ^3 x2 t x3'' t 0 x1 0 r0 1 x1' 0 v0 1 x2 0 r0 2 x2' 0 v0 2 x3 0 r0 3 x3' 0 v0 3 x1 x2..

what exactly is a “register machine”?

http://stackoverflow.com/questions/1622530/what-exactly-is-a-register-machine

a register machine it would be something like this. Load x r0 Load x onto register 0 Load y r1 Load y onto register 1 Add.. x onto register 0 Load y r1 Load y onto register 1 Add r0 r1 r2 Add 1 and 2 and store the result in register 2 share..

more efficient way to calculate distance in numpy?

http://stackoverflow.com/questions/17527340/more-efficient-way-to-calculate-distance-in-numpy

from numpy.core.umath_tests import inner1d In 13 timeit r0 a 0 None b 0 None r1 a 1 None b 1 None r0 r0 r1 r1 r0 r1 10.. In 13 timeit r0 a 0 None b 0 None r1 a 1 None b 1 None r0 r0 r1 r1 r0 r1 10 loops best of 3 146 ms per loop In 14 timeit.. In 13 timeit r0 a 0 None b 0 None r1 a 1 None b 1 None r0 r0 r1 r1 r0 r1 10 loops best of 3 146 ms per loop In 14 timeit..

Search for string allowing for one mismatch in any location of the string

http://stackoverflow.com/questions/2420412/search-for-string-allowing-for-one-mismatch-in-any-location-of-the-string

d is distance. We need only 0 and 1. These R s become the R0 and R1 variables in the code below. # coding ascii from collections.. defaultdict int for i c in enumerate pattern S_table c 1 i R0 0 R1 0 mask 1 m 1 for j c in enumerate text S S_table c shR0.. 0 R1 0 mask 1 m 1 for j c in enumerate text S S_table c shR0 R0 1 1 R0 shR0 S R1 R1 1 1 S shR0 if _DEBUG print j 2d msk s..