for the mathematics and for the demo
of numpy + PIL in an I-Python Notebook.
(cl) Kirby Urner, MIT License, 2015
Pilot study for O'Reilly School of Technology
Using I-Python Notebook + pillow (PIL fork) + in Anaconda distro
'''
from PIL import Image
import numpy as np
def setup(pixels=(3200,2400
On Mon, Jun 8, 2015 at 9:43 AM, Kirby Urner kur...@oreillyschool.com
wrote:
I've actually written some code for Python5 and
it's a work in progress. Tractors instead of Turtles
but as a way of introducing Turtles i.e. I'm not
anti-Turtle in using a Tractor instead. A subclass
of Tractor
Python is a lot more elegant than xBase in many ways,
but then those of us coming from xBase appreciate the
continuity.
For example having a (chevron) instead of a
dot prompt (. ) is superficial whereas what's deep is
having REPL in both cases. Ever since APL, I've been
biased towards
http://mathforum.org/kb/message.jspa?messageID=9780027
From math-teach
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We know the Great Lambda languages like
LISP and Scheme have lambdas that might
go on for pages, whereas Python has a little
lambda: one expression only.
That expression may be another lambda
however, and perhaps worth doing, to get
the concept of composing functions across,
we might in math
I take a debate-encouraging position against the standard
cohort-based, curve- and letter-graded style of teaching in
this blog post from when I was the USDLA (distance learning)
conference:
http://worldgame.blogspot.com/2015/04/against-grain.html
But we have more in common than what divides us,
Discussion of student privacy, especially cyber-privacy on
math-teach, including my reply re the efficacy / relevance
of Gnu Math:
http://mathforum.org/kb/thread.jspa?threadID=2706045
Kirby
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I was playing with this somewhat dated and
not fully accepted key or legend the gender
diversity people sometimes use:
. diversity_acronyms = {'G':'Gay',
'L':'Lesbian',
'T':'Trans',
'B':'Bi',
'Q':'Queer',
'Q':'Questioning',
'H':'Hetero',
'I':'Intersex',
'P':'Pan' }
.
The help on __doc__ belongs in the same section
as help on __name__ and even __file__ as these
are likewise attributes at the module level, which
is where our course series first mentions
docstrings (Lesson 1, Project 1 is already docstring
aware). [1]
Footnotes
[1] these on-line courses
*TEACHER TO TEACHER: PYTHONIC NOTES*
*1. Docstrings Versus Comments*
In teaching Python quite a bit, I find even
pro programmers get confused about docstrings,
as many languages have nothing quite like
them.
Your audience is not readers of your source code,
which they may not have, but users
In the help documentation, the grammatical
concepts of noun, verb, adverb and more, get used
to introduce the grammar of J. That seems effective
and I've been using something like this with OO
(not Python-specific):
noun.adjective = value
noun.verb( )
Continuing with this theme, I also
As long time readers here may recall, I'm a fan
of the J language, a derivative / spin-off of APL
by Iverson, and indeed the late Iverson, son Eric
and Roger Hui, developed a cool ASCII-friendly
version of what APL was working to be.
In the help documentation, the grammatical
concepts of noun,
We also have a new Cuba Working Group mail list
aiming to jump start Pycon / Cuba. Mertz is the owner.
I'm just one of many subscribers.
Kirby
https://mail.python.org/mailman/listinfo/python-cuba
Some of you will be aware of:
My 3-page paper concluding with the graphic rendered by this source code:
https://mail.python.org/pipermail/edu-sig/2015-March/011203.html (Python +
POV-Ray)
was roundly rejected by the Bridges reviewers.
http://bridgesmathart.org/
Citations are to Wikipedia pages, or peculiarly to the
Give that 10-year old plenty of encouragement, but be ready to catch
him when he falls. Write the Java for him, if necessary, but then
show him the equivalent in Python.
Having the motive to master Minecraft is a good reminder that a lot
of us tackle a language as a means to an end not as an
Yes many thanks for the Minecraft with Pi link.
@psf_snake tweeted about it too today -- and re a 111 line python chess
engine a student pointed me at.
Kirby
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On Thu, Mar 19, 2015 at 9:42 PM, Mark Engelberg mark.engelb...@gmail.com
wrote:
On Thu, Mar 19, 2015 at 7:38 AM, kirby urner kirby.ur...@gmail.com
wrote:
I'm not one of those who think you need to join warring Camp A (OOP) or
warring Camp B (FP) and then express loyalty to one by dissing
On Thu, Mar 19, 2015 at 12:59 AM, Mark Engelberg mark.engelb...@gmail.com
wrote:
Kirby, have you ever looked at mathpiper? (http://www.mathpiper.org/) I
know you have a strong interest in fusing math explorations with
programming, so it seems like something that would be right up your alley
Checking the edu-sig archive, looks like indentation doesn't show this
paragraph was quoted by me not written by me:
I think the best way to understand these criticisms is to take a look at
the language Pyret (pyret.org), a language that is being developed by
Shriram Krishnamurthi (one of the
Ruby isn't mentioned because it never made significant waves in the
educational community. Remember, the article is just about educational
language choices, not fashionable languages in general.
The bulk of the article is discussion of Python's weaknesses:
1) Creating non-trivial data
On Sun, Mar 8, 2015 at 6:31 PM, kirby urner kirby.ur...@gmail.com wrote:
Author: Kirby Urner, 4D Solutions, Sept. 15 2005
Last modified: March 7, 2015
Version #: 1.7
(c) MIT Licence
Developed for Bridges Conference to add graphic to paper
Here's a link to the rendered graphic should
Author: Kirby Urner, 4D Solutions, Sept. 15 2005
Last modified: March 7, 2015
Version #: 1.7
(c) MIT Licence
Developed for Bridges Conference to add graphic to paper
Prototype shows two of the six plastic panels held in
place by spokes. In the final assembly, spokes are replaced
by chains
export, fast
food much lower on the food chain).
Kirby
On Thu, Feb 19, 2015 at 9:28 AM, kirby urner kirby.ur...@gmail.com wrote:
On Thu, Feb 19, 2015 at 9:20 AM, kirby urner kirby.ur...@gmail.com
wrote:
I'm finding a useful metaphor that resonates with my students is the fast
food
I'm finding a useful metaphor that resonates with my students is the fast
food franchise, or really and chain store, petrol station chain or whatever.
class KFC:
defines how long to cook the chicken in what batter, also signage,
branding
restaurant_on_sandy_blvd = KFC(lat_long) # from
On Thu, Feb 19, 2015 at 9:20 AM, kirby urner kirby.ur...@gmail.com wrote:
I'm finding a useful metaphor that resonates with my students is the fast
food franchise, or really and chain store, petrol station chain or whatever.
sentence = sentence.replace(and chain, any chain)
Here's
On Wed, Feb 4, 2015 at 10:49 AM, kirby urner kirby.ur...@gmail.com wrote:
. . .
Good point re Diversity. Aahz once listed edu-sig as one of the many
Diversity-related resources associated with Python.org and many a
university and college has a Diversity office, so I think we're within
On Sun, Feb 8, 2015 at 7:40 AM, kirby urner kirby.ur...@gmail.com wrote:
Continuing my thinking above, I do like that this superbowl commercial
escaped most criticism, other than an earlier version has been on the
Internet a long time so it wasn't actually novel.
A link would have helped I
On Wed, Feb 4, 2015 at 10:27 AM, Laura Creighton l...@openend.se wrote:
...
maybe this was for diversity, not edu-sig Kirby?
Laura
Good points Laura.
I know from looking over dad's shoulder when he worked for Egyptian
Ministry of Planning,
that bids would come from firms, not
Yikes my formatting above sure came out ugly in the archive:
https://mail.python.org/pipermail/edu-sig/2015-February/011196.html
Pardon my line lengths people!
Maybe some of those re-archivers (mirrors of edu-sig) will make it look
prettier, sigh.
Kirby
Not every Pythonista knows of the lone star.
Say you want some keyword arguments that have to be mentioned, but you
would never allow them to be reached positionally.
Or: it's fine if you don't mention them, but if you know they exist, you
have powers.
def game_boot_up(pos0, pos1, *, cheat =
On Thu, Jan 15, 2015 at 2:00 AM, Laura Creighton l...@openend.se wrote:
Can you suggest your student watch this video?
http://www.thersa.org/events/rsaanimate/animate/rsa-animate-drive
It is Dan Pink's _The Surprising Truth About what Motivates Us_
After he or she has done so, I have this
Student (paraphrase):
What else do I need to know besides Python to get a job in IT?
Might some jobs involve telecommuting and not physically going anywhere?
-
My answer:
Good questions.
There are many walks of life for those with coding skills. If
you were to attend the expo hall at
Followup with same student, not from China but planning to go there:
===
Interesting observations, thank you.
At OST we see ourselves as a school, even though in the .com
domain. Given what you say about other schools not availing
of these newer / better tools: that works to our advantage,
but
Level 1
On Thu, Jan 8, 2015 at 7:29 AM, kirby urner kirby.ur...@gmail.com wrote:
Off hand, I'm not taking not hearing from the listowner as a reason to
change ownership.
Hypothetically, the listowner was appointed by the BDFL sometime in the
murky past. I long ago accepted life
Thanks for clarifying.
Kirby
On Fri, Jan 9, 2015 at 1:21 PM, Jeff Elkner j...@elkner.net wrote:
On Fri, Jan 9, 2015 at 11:08 AM, kirby urner kirby.ur...@gmail.com
wrote:
I think the mailing list listowner role and coordinating PES are entirely
separate roles.
For example we could
, kirby urner kirby.ur...@gmail.com wrote:
Looks good.
I don't think we've ever heard from listowner Wilson on this list. We do
get good spam filtering I think.
I've put in a request to be at the upcoming Pycon but I don't think it's
been approved. I was unable to attend last year.
Edu
Looks good.
I don't think we've ever heard from listowner Wilson on this list. We do
get good spam filtering I think.
I've put in a request to be at the upcoming Pycon but I don't think it's
been approved. I was unable to attend last year.
Edu-wise my focus believe or not has been the Python
I don't understand bring it back on-line. Is edu-sig off-line in some
way currently? I have noticed no interruption in service.
That's why I'm not calling for some shake up in list ownership. We've had
pretty smooth sailing, not counting the usual snits about topics.
Kirby
On Thu, Jan 8,
, Andre Roberge andre.robe...@gmail.com
wrote:
On Thu, Jan 8, 2015 at 2:54 PM, kirby urner kirby.ur...@gmail.com wrote:
I don't understand bring it back on-line. Is edu-sig off-line in some
way currently?
When the people organizing Pycon's Education Summit can not post
information about
...@gmail.com
wrote:
Thanks everyone for your suggestions. It will help me to design the
outline and content I shall let you know how it goes.
Regards,
Tamim.
On Thu, Dec 18, 2014 at 1:36 AM, kirby urner kirby.ur...@gmail.com
wrote:
Hi Tamim --
Speaking teacher-to-teacher, I think in terms
This looks like a really interesting project. I will help spread the news.
Kirby
On Wed, Dec 17, 2014 at 7:41 AM, Andre Roberge andre.robe...@gmail.com
wrote:
Hi everyone,
If you use Python 3 and PyQt in a teaching environment (e.g. the Anaconda
distribution), you might be interested in a
Hi Tamim --
Speaking teacher-to-teacher, I think in terms of an XY graph with X-axis
the techie nuts and bolts and Y-axis the lore / history / storytelling.
Then I draw a curve representing any given students bandwidth horizon and
suggest varying the angle along the curve i.e. keep changing the
I agree that IDLE is quite usable once working properly which is pretty
much never a problem with Windows distros but can be an issue when doing a
from-scratch C-language compilation of Python with the Tk part added. Tk
is after all a separate process in another language which Python controls
or
RSA in brief (in Python 3)
See:
http://www.4dsolutions.net/ocn/crypto3.html
http://mathforum.org/kb/thread.jspa?threadID=2663184
http://mathforum.org/kb/thread.jspa?forumID=206threadID=2653047
(c) MIT License, 4D Solutions
import random
# download a chunk of numbers from:
Example output (three consecutive runs):
Public N = 925075011663569777
Secret d = 711596161338425677
Check: (e*d) % phi_N = 1
plaintext = 555777888
cyphertext = 622844123057157942
decoded = 555777888
---
Public N = 925075073219310157
Secret d = 853915450426794181
Check: (e*d) % phi_N = 1
To paraprase Churchhill: Schools are lousy ecosystems for learning but
we haven't found any practical better systems yet.
How successful has the OLPC-project actually been? Any evidence beyond
quotes and ideas from SciFi The diamond age ;-) ?
Cheers
Christian
You bring up a good point:
On Wed, Nov 26, 2014 at 11:17 AM, kirby urner kirby.ur...@gmail.com wrote:
SNIP
But the marketing of the Big Money Firms in IT-industry will pay off some
time. Hey, lets burn lots of money for more computers in school - sounds
GREAT.
Crazy...
Christian
I think many students would
SNIP
But the marketing of the Big Money Firms in IT-industry will pay off some
time. Hey, lets burn lots of money for more computers in school - sounds
GREAT.
Crazy...
Christian
I think many students would be better served if the emphasis were on
creating for them a safe personal
Geekdom is having a field day over this apparent
stumble by Mattel as it contrives to boost Barbie
in the brains department without being too disruptive
to cultural norms (she's a mainstream doll after all,
meant for middle-of-the-road middle-classers, e.g.
nuclear families with power nesters in
Here's a comment I just posted to some student work, reminiscing about a
thread we had earlier.
At some point I should go back and find the link.
Laura, hope you don't mind that I propagate your reputation in a positive
manner:
===
Yes, proficient and easy to read.
I would have been OK with no
Looking really professional and user friendly as usual.
Kirby
On Mon, Nov 3, 2014 at 2:53 PM, Andre Roberge andre.robe...@gmail.com
wrote:
Hi everyone,
For those that use Karel the robot / Guido van Robot / RUR-PLE to teach
Python, you may be interested in the latest developments in
'''
(c) MIT License by K. Urner
More playing around with NKS for a Gnu Math class using Python
NKS = new kind of science (Wolfram) i.e. cellular automata (CA)
'''
def make_rule(n):
takes 0-255 and returns rule dict
the_rule = {}
values = {:08b}.format(n)
for x in range(8):
Does anyone off hand know precisely how many special names aka magic
methods aka __ribs__ (my quirky name for 'em) in Python 3.4?
We don't make these up, and there's a finite number. I could look it up of
course but let me poll Python teachers and ask how many actually say how
many in an
after all these years:
https://groups.google.com/d/msg/mathfuture/dfz-dBD1S_A/m2FRgUP2YfkJ
Kirby
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Edu-siggers might be interested in a rhetorical move, mainly for PR reasons
(recruiting, morale...), to rebrand differential / integral calculus
(Newton-Leibniz stuff) as also (equivalently) delta calculus (picture
Greek letter del hyphen calculus).
Why?
Well for one calculus is too generic a
On Mon, Sep 29, 2014 at 11:04 AM, kirby urner kirby.ur...@gmail.com wrote:
Edu-siggers might be interested in a rhetorical move, mainly for PR
reasons (recruiting, morale...), to rebrand differential / integral
calculus (Newton-Leibniz stuff) as also (equivalently) delta calculus
(picture
Demonstrating the descriptor protocol
(cl) MIT by K. Urner
class Property:
def __init__(self, start):
self.it = start
def __set__(self, obj, val):
if isinstance(obj, ReadOnly):
print(Can't set property from this child)
else:
obj.it = val
to be a DjangoCon sponsor this year, check it out...
https://www.flickr.com/photos/kirbyurner/14963846568/ (OST a player!)
... high five Patrick!
Kirby
From: Kirby Urner [that's me]
Date: Fri, Sep 5, 2014 at 1:41 PM
Subject: Re: Interesting Mac-only Python graphics program(?)
To: Patrick Barton
Well, that was absurdly easy to do. I didn't really expect it to go
straight to the website:
https://www.python.org/success-stories/kirby-urner/
And guess what, I managed to get the URL wrong so if you click on the
link... probably just as well.
I'm finding a gazillion success stories though
In sketching out the Python ecosystem in broad brush terms, is it fair to
say NumPy gets a lot of US investment whereas PyPy is more an EU pet
project? Or is that too broad brush?
I sat at the i18n table at OSCON and mostly met up with other North
Americans, which can be plenty alien, and with
On Sat, Aug 30, 2014 at 12:51 PM, Kirby Urner kur...@oreillyschool.com
wrote:
In addition to Matthew, Kelly Hoover, Patrick Barton, myself, and course
authors Steve Holden (Python) and Peter Scott (Perl), our school principal,
Debra, manned the booth.
And of course Christian joined
On Sat, Aug 30, 2014 at 1:38 PM, Laura Creighton l...@openend.se wrote:
In sketching out the Python ecosystem in broad brush terms, is it fair to
say NumPy gets a lot of US investment whereas PyPy is more an EU pet
project? Or is that too broad brush?
Too broad. In investment terms, PyPy
or vice versa:
http://morepypy.blogspot.com/2011/10/numpy-funding-and-status-update.html
Kirby
On Sat, Aug 30, 2014 at 6:13 PM, kirby urner kirby.ur...@gmail.com wrote:
On Sat, Aug 30, 2014 at 1:38 PM, Laura Creighton l...@openend.se wrote:
In sketching out the Python ecosystem in broad
I go into quite a bit of detail in this thread at the Math Forum, regarding
what I think an Algebra course leading up to a digital math track might
look like.
http://mathforum.org/kb/thread.jspa?threadID=2637672
This is looking at what we might call high school math but I'd also bill
it as an
I've been fostering debate around work about i18n (internationalization)
a tried and true topic in Geek World bar none, and otherwise known,
paradoxically, as localization as in make all these Ubuntu menus appear
in the Basque language.
I remember being in Lithuania and booting up Blogger, to
On Tue, Jun 17, 2014 at 6:46 AM, Jeff Elkner j...@elkner.net wrote:
Let's use the wiki page (https://wiki.python.org/moin/
) for this,
Jurgis, so that the work of keeping it current can be distributed.
Interested members of our community should create accounts for
themselves on the wiki, and
Looking good!
On Sun, Jun 1, 2014 at 7:14 AM, Jeff Elkner j...@elkner.net wrote:
OK, I've made Andre's specific changes, and tried to capture the
spirit of Kirby's feedback in the Python 3 vs. 2 section.
On Sat, May 31, 2014 at 7:21 PM, Andre Roberge andre.robe...@gmail.com
wrote:
Good
On Sat, May 31, 2014 at 3:53 PM, kirby urner kirby.ur...@gmail.com wrote:
Looks good but I'd say this advice is really too strict a criterion:
Use Python 3, and more specifically version 3.4, if you only plan to
teach Python as an introductory language (say in a CS-1 course), making use
Looks good but I'd say this advice is really too strict a criterion:
Use Python 3, and more specifically version 3.4, if you only plan to teach
Python as an introductory language (say in a CS-1 course), making use *only*
of modules included in the standard distribution.
In fact, Python 3 works
and my bias would be to encourage learning 3.x first and any 2.x
version as a dialect later.
Enough 3rd party products have made the transition to where I don't think
we need to circle 2.x as much in our advice-giving (whereas when this
advice was first given, 3.x was still quite new).
Kirby
Looks pretty good in the archives, except for the text wrapping, which
makes cutting and pasting the code a little tedious.
Here's the output, FYI:
Amod volume = : 0.04168
Bmod volume = : 0.041595
Emod volume = : 0.04173131692777366
Tmod volume = : 0.04168
On Thu, May 22, 2014 at 7:02 AM, Jeff Elkner j...@elkner.net wrote:
Great! So it seems we have two short term goals:
1. Get someone to agree to maintain the website (I'm volunteering if
there isn't anyone else chomping at the bit to do it).
Thanks for stepping up Jeff. We've not had an
what gets done.
On Fri, May 23, 2014 at 4:27 PM, Jessica Nickel jessanic...@gmail.com
wrote:
Kirby,
I agree, and think there definitely needs to be a focus on both college
and
community-based education outreach as well.
On Fri, May 23, 2014 at 4:26 PM, kirby urner kirby.ur
shapes in E and S vols with phi scaling
Euler volume, modified by Gerald de Jong
http://www.grunch.net/synergetics/quadvols.html
Kirby Urner (c) MIT License
from math import sqrt, hypot
class PlaneNet:
Any six edge tet in pattern described in API notes
def __init__(self, oa, ob, oc, ab, bc
I should also post what the output is, so scanners / readers might avoid
the tedium of running it just to find out:
/usr/local/bin/python3.4m /Users/pbarton/Documents/modvolumes.py
Amod volume = : 0.04168
Bmod volume = : 0.041595
I'm eager to sit in on a Processing talk. Is it open source? I'm
surprised it never comes up at OSCON if so.
Kirby
On Tue, Apr 22, 2014 at 7:08 AM, Jurgis Pralgauskis
jurgis.pralgaus...@gmail.com wrote:
Hi,
I enjoyed Processing for C++/Java teaching,
and now I stumbled upon Python
On Tue, Apr 15, 2014 at 2:45 AM, Christian Mascher christian.masc...@gmx.de
wrote:
Hi,
Unfortunately, I'd love to do the same in AP Calculus but Graphing
Calculators are required on that AP exam. The students need to use the
Graphing Calculator all year to be proficient enough by May.
Just topping up at Pycon?
Wait, there's more:
http://www.oscon.com/oscon2014/public/schedule/topic/1128
However, many more talks than these may mention or use
Python as all tracks are partially overlapping in various ways
(like a basket of snakes alive!). Sss.
I was one of the readers of
Re: http://mathforum.org/kb/message.jspa?messageID=9430209
The above-linked thread might garner some forking threads or comment lines
here. This branch is mostly dormant on math-teach as of today, but points
back to an earlier thread that evoked much discussion (so well may take off
again),
On Sun, Apr 13, 2014 at 11:51 AM, A. Jorge Garcia calcp...@aol.com wrote:
I have a similar problem in AP Computer Science. That course has required
Java since 2003. Frankly, I wish they would have stayed with C++ which we
used from 1999-2002 (a vast improvement over Pascal 1984-1998). I wish
Learning about Decorators
Just for the fun of it -- OCN
Decorators as Abductors
I'm thinking in terms of a specific (aborted) TV series,
but the pattern:
me = Abduct(me) # @Abduct a callable
has generic resonance as a metaphor.
Specifically:
On Tue, Apr 1, 2014 at 7:07 PM, Charles Severance c...@umich.edu wrote:
I think that we make a mistake of having sequences of courses that just
get harder and harder and never loop back and review.
Hear hear!
+1
Kirby
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What's a callable?
In making the transition from Algebra to a computer science
friendly math class, such as many states have legislatively
enabled (Oregon one such state), the distinction between
what's a callable and what's not may feel familiar.
Traditional math notation has to disambiguate
Round Trip in UTF-8: Two Byte Encodings
Explanation:
Latin-1 includes all of 127 7-bit ASCII and begins
the 2-byte encodings in UTF-8. Below, Latin-1
character at code point 200 is represented as
bytes then broken down into bits.
When utf-8 needs two bytes (it might use up to six),
the
This is all great news Andre. Interesting packages that
dissect themselves in a what makes me tick way are
doubly valuable, at least doubly.
Reeborg's World, which I just visited, looks really
friendly / accessible, a great way to learn. I starting
move( )-ing immediately.
I look forward to
Just to conclude the the code part (from me), I realized while walking this
morning that POV-Ray scene description language is such that the ordering
of sphere placement would not matter, so just iterate through the keys.
The code before tried to construct the keys by duplicating the raster
Just for Fun
A quick sketch of a Descriptor construct.
A descriptor is a type instance with a
__get __ and __set__ protocol, also __delete__,
and designed to satisfy a common need to manage
setting and getting with mediating methods.
http://docs.python.org/3.4/howto/descriptor.html
(cc) Kirby
or import simple_fractal into this module
(cc) Kirby Urner, MIT license
4dsolutions.net
Example bash command lines to generate the output file and
then render it into a PNG file:
mackurner:Documents kurner$ python3 simple_fractal.py
mackurner:Documents kurner$ povray +Imandelbrot.pov +A[0.1
Just for Fun:
Simple Fractal (ASCII art)
(cc) Kirby Urner, MIT license
4dsolutions.net
class M:
Plant an M-Seed and call it, in each cell of the Garden
depth = 7
def __init__(self, x, y):
self.c = complex(x,y)
def __call__(self):
z = 0+0j
As a former author / maintainer of the edu-sig
web page and frequent visitor thereto, I have
(a) welcomed the new beta website and
(b) sent some feedback to the effect that:
(i) opening first link / mention of this edu-sig
maillist gets permission denied
(ii) opening last link /
/kb/message.jspa?messageID=9391791
Related:
https://groups.google.com/forum/#!topic/mathfuture/GszzTxcxEoE
Kirby
On Fri, Feb 21, 2014 at 12:59 AM, kirby urner kirby.ur...@gmail.com wrote:
An excellent textbook, mentioned (by me) recently in this ongoing thread:
http://mathforum.org/kb
An excellent textbook, mentioned (by me) recently in this ongoing thread:
http://mathforum.org/kb/thread.jspa?threadID=2620194
Kirby
On Thu, Feb 20, 2014 at 12:54 PM, roberto robert...@gmail.com wrote:
wow, I didn't know that, thanks for sharing
Roberto
On Thu, Feb 20, 2014 at 3:59 PM,
More ActiveMath... by K. Urner (c) MIT License
4dsolutions.net/ocn : Oregon Curriculum Network
Merit badge activity: study the Method Resolution Order
defined below and make a drawing of the inheritance tree,
with object at the top and ScoutManual at the bottom.
class Cove:
def
Discrete math approach to Calculus
This is what I imagine as a segue from discrete math to
calc, using Python. We're using a tiny delta_x = h to
compute values discretely, and then comparing those
computed series with functions at the limit such as
calculus would give us. It's the same segue
,
but also to learning about class decorators:
__author__ = 'Kirby Urner'
(c) MIT License, K. Urner, 4D Solutions, 2014
from math import log
h = delta_x = 1e-2 # tiny delta
class Derivative:
def __init__(self, func):
self.func = func
def __call__(self, x):
f = self.func
OSCON, the annual Open Source Convention held in Portland OR, will be held
next year from July 20-24.
The call for participation has now been published, and there will again be
a Python track. Please see the full call at
http://www.oscon.com/oscon2014/public/cfp/308.
Submissions for 3-hour
We've been discussing the evolving Raspberry Pi picture on MathFuture
somewhat (overlapping contributors), noting Wolfram Language throwing
itself in the ring, as another language the Pi supports. My Gchat with
Indonesia this evening was about that.
I had another Hangout with the eduSummit gang.
On Fri, Nov 22, 2013 at 9:49 PM, Litvin lit...@skylit.com wrote:
Kirby,
I am sorry to spoil all the fun, but this is a not a gem but a
mathematical trick, and I think the way to deal with
mathematical tricks is to explain them, not to verify with code.
Having an algebraic verification is
Yes, I would consider that an improvement, though I might go back to a
generator with:
from math import sqrt
rt5 = sqrt(5)
phi = (1 + rt5)/2
def neat_formula(f0, f1, f2):
while True:
yield (f0 + f2 + rt5*f1)/2
f0, f1, f2 = f1, f2, f1+f2
power_of_phi = phi**(-6)
results =
Here's something mathematical from the Poly list [1], adapting
something by David Koski.
The code shows how one might use a program to express a
cool relationship, without offering a proof.
The unit-test shows use raising PHI from the -6 to the 29th
power and finding an equivalent expression
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