[CentralOH] 2015-02-06 道場 Scribbles 落書/惡文? django, euler #12, #2, repr abuse, factors, interference, moire, heterodyning, numbers in the attic

[jep200404 at columbus.rr.com]

Party #1

    https://pypi.python.org/pypi/pandas

Party #2

    had many questions about Django, needs to do homework

    You read book:
    http://www.djangobook.com/en/2.0/index.html
        Chapters 1 through 8 inclusive
        Chapter 14 for session stuff
    sqlite3

    In restrospect, for the person's limited needs, maybe Django is overkill.

Party #3

    https://projecteuler.net/problem=2

        generate even fibonacci numbers
        [CentralOH] 2013-05-30 道場 Scribbles 落書/惡文?
        https://mail.python.org/pipermail/centraloh/2013-June/001698.html
        http://mail.python.org/pipermail/centraloh/attachments/20130531/f0ee5532/attachment.obj

        nested generators and tuple unpacking
        [CentralOH] 2013-06-07 道場 Scribbles 落書/惡文?
        https://mail.python.org/pipermail/centraloh/2013-June/001718.html

        Put code from both elegant nested generator technique and 
        plain functions in one ipython notebook.
        See http://colug.net/python/dojo/20150206.

    http://hackertyper.net/  # Air guitar for typing.

    Brandon rhodes' adventure
    http://pyvideo.org/video/522/pyohio-2011--sunday-lightning-talks
    http://pyvideo.org/video/522/
    See http://colug.net/python/dojo/20150206 for abusing __repr__().

    vim

        ^Wv to split existing pane into two panes side by side
            cursor stays in left pane
        ^Ws to split existing pane into two panes one above other
            cursor stays in top pane

Party #4

    Euler #12
        factor() was terribly slow
        Play with http://linux.die.net/man/1/factor.
        Need to work through examples by hand.
        How many factors do the following numbers have?
Korean Air Lines Flight 007
            2
            4
            8
            16
            32
            64

                What pattern do you see?

            3
            9Korean Air Lines Flight 007
            27
            81
            243

                What pattern do you see?

            6
            12
            24
            48
            96

                What pattern do you see?

            6
            18
            54
            162


                What pattern do you see?

            4
            12
            36
            108
            324

                What pattern do you see?

            Have you seen enough patterns to figure out a formula for 
            determining how many factors a number has?

    Did not have Ipython Notebook installed, so used tmpnb.org, 
    but lousy Wifi frustrated that.

    Wifi reception at Panera
    wp:Interference (wave propagation)
    wp:Node (physics)
    wp:Standing wave
    wp:Reflections of signals on conducting lines

wp:Radio_Shack#2015_Bankruptcy

http://opensource.com/business/15/2/how-linux-philosophy-affects-you

http://www.linuxlinks.com/article/20150201134045961/BeginnerBooks.html

What do you get when you combined Uber with Car2Go?

wp:金正日
http://en.wiktionary.org/wiki/正#Usage_notes
wp:Tally_marks#Clustering
wp:Attic
wp:Attic numerals
wp:Greek numerals
wp:Roman numerals
wp:Arabic numerals
wp:Hindu–Arabic numeral system

wp:hanjin
http://english.chosun.com/site/data/html_dir/2015/02/03/2015020301467.html
wp:Korean Air Lines Flight 007
wp:Korean Air Flight 801
wp:Shin Ki-ha
https://en.wiktionary.org/wiki/辛
wp:Shin Ramyun

Eddie Harris - Listen Here - The Electrifying Eddie Harris
Desert Queen - Janet Wallach