vr2262

Gather  (cost=36576.06..15864926.71 rows=44743 width=139) (actual time=25.083..91.672 rows=34558 loops=1)
  Workers Planned: 2Gather  (cost=36576.06..15864926.71 rows=44743 width=139) (actual time=25.083..91.672 rows=34558 loops=1)
  Workers Planned: 2
  Workers Launched: 2
  Buffers: shared hit=72143 read=1319
  I/O Timings: read=15.456
  ->  Hash Left Join  (cost=35576.06..15859452.41 rows=18643 width=139) (actual time=4.615..61.641 rows=11519 loops=3)
        Hash Cond: (my_table.joined_table_2_id = joined_table_2.id)
        Buffers: shared hit=72143 read=1319
        I/O Timings: read=15.456

vr2262

vr2262

1. Download this script and make it executable: https://gist.github.com/meatballhat/12997137db1a9394f39c

2. Invoke the script like so:

   $ ./run-travis-docker-image image_name
   

where image_name is one of the travis_<name> images here: https://quay.io/organization/travisci

e.g. ./run-travis-docker-image python

vr2262

Keybase proof

I hereby claim:

• I am vr2262 on github.
• I am vr2262 (https://keybase.io/vr2262) on keybase.
• I have a public key whose fingerprint is 8E58 B319 65B8 C929 93F2 92E0 52F7 73FE A9C4 5CFD

To claim this, I am signing this object:

vr2262

GNU GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

                            Preamble

  The GNU General Public License is a free, copyleft license for

vr2262

##Instructions

1. Install the dependencies from the top of this page: https://github.com/yyuu/pyenv/wiki/Common-build-problems
2. $ git clone git://github.com/yyuu/pyenv.git ~/.pyenv

pyenv allows you to manage Python (and pip, etc) versions easily. 3. $ echo 'export PATH="$HOME/.pyenv/bin:$PATH"' >> ~/.bashrc (Assuming you're using bash) 4. $ echo 'eval "$(pyenv init -)"' >> ~/.bashrc 5. $ source ~/.bashrc 6. To install a particular version of Python to your machine:

vr2262

9e87a6cb860f761cb15a1bd220ac59a4c09f7cbf

vr2262

def ruffinis_rule(coefficients, factor):
    """Perform synthetic division and evaluate a polynomial at a factor."""
    deflated = np.empty(len(coefficients) - 1, dtype=complex)
    deflated[0] = coefficients[0]
    for i, coeff in enumerate(coefficients[1:-1], start=1):
        deflated[i] = coeff + deflated[i - 1] * factor
    evaluation = coefficients[-1] + deflated[-1] * factor
    return deflated, evaluation

vr2262

vr2262

from scipy import special
from scipy import misc
import numpy as np
from matplotlib import pyplot as plt
from matplotlib.backends.backend_pdf import PdfPages


def relative_error(accepted, approximation):
    # Helper function for finding relative error.
    return abs((accepted - approximation) / float(accepted))