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In Memoriam 2015

January 1: Donna Douglas: Played daughter Elly May Clampett in The Beverly Hillbillies. (Age 82). 1: Mario Cuomo: Governor of New York (1983 to 1994) (Age 82). 2: James Cecil Dickens: Known as Little Jimmy Dickens, best known for his song May the Bird of Paradise Fly Up ...

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The disappearance of misc.activism.progressive and the emergence of Thought Crime Radio

Almost four years ago, the articles in the USENET newsgroup misc.activism.progressive ground to a halt, and moderator Rich Winkel has all but disappeared from the USENET, whom I learn resided in Harrisburg (up until 2010, at least), a half hour or so drive from his ...

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Sounding off on the end of CanCon and the CRTC

I guess with the recent decision to axe all cancon requirements for daytime programming in Canada, the CRTC is crawling toward its own irrelevance. Let's not be naive, Canadian culture is that much more weakened without the protection it partially enjoyed from American influence. With ...

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Eldred, Saskatchewan on the map … barely

Eldred, Saskatchewan on the map ... barely

I've written about obscure Saskatchewan communities before. Here is another community far to the north of Unity. My ancestors from France settled here. Many of my ancestors were pioneers that broke new farming ground nearest to a community called Eldred, Saskatchewan. Eldred was about 10 km ...

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Zero

Once upon a time, around the year 525 during the reign of Pope John I, a monk named Dionysius invented the idea of Anno Domini by producing a calendar which marked the time since the birth of Christ. The numbering of the years was adopted ...

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Fortune Cookies for Human Rights

Fortune Cookies for Human Rights

You know, I was minding my own business in this classy Chinese restaurant, engorging myself on their copious buffet, had my fill, and was handed the bill with an accompanying fortune cookie. This fortune cookie (the one to the left) really existed, and I never saw ...

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Getting f(x) notation to work in Maple

Getting f(x) notation to work in Maple

Maple is a robust math environment which can graph, solve equations, and solve for the unknown with the aid of its computer algebra solver (CAS), which is capable of computing exact roots of cubic functions, for example. I wanted to demonstrate for myself that Maple could ...

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Kudos to the 1050 CHUM Memorial Blog

Kudos to the 1050 CHUM Memorial Blog

Recently, I've been hit (my website that is) by someone possibly checking his plethora of links from his/her website, and when I back-traced it, I find this cool blog which acts as a convincing historical shrine to the late great 1050 CHUM Radio in Toronto. ...

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The Obfuscation of Electronics: The Behringer Xenyx 502

The Obfuscation of Electronics: The Behringer Xenyx 502

This is more like a meta-review. I have gone to Canada Computes where nearly the entire Behringer line is sold, and was impressed by the specs. But does it do what I want, the way I want it? I face a number of obstacles, being a ...

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Nice polynomials, nice polynomials …

Tweet For my math class, I was attempting to create a curve sketching question by writing the second derivative as a factorable quadratic, and working backwards to an order-4 polynomial. Along the way, I would fill in the missing constant terms by using synthetic division on an arbitrary binomial factor, and striking upon a satisfactory polynomial […] […]

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How to spend an idle afternoon

Tweet Yesterday, I told another fellow computer geek an ’80s DOS joke about being prompted to “Enter any 11-digit prime number and press ENTER to continue.” She then suggested that a number with 11 1’s might be prime.  Having encountered this before in programs I’ve written, I warned her that you can’t assume all sequences of […] […]

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HP 35s Calculator Annoyances III

Tweet I keep saying how much of a fan I am of the RPN mode, and have used it on and off since high school. But times have changed, and HP needs to find a way to manipluate the logic of repeated calculations to make RPN still come out on top, but I feel discouraged, and […] […]

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HP Calculator Annoyances II

Tweet I am as much of a fan of the RPN mode as anyone. But the implementation of RPN in the HP calculators have to keep up with new developments in technology. For one thing, I had trouble in RPN mode, to make a list of random numbers. Suppose you wanted to make a list of numbers […] […]

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More on the HP 35s Calculator

Tweet I have kept some notes as I was performing an stats operation on a list of numbers. Most of the time the interface on most calculators is intuitive enough that you don’t really need the manual to do things like stats or common operations on the scientific calculator. The Sharp calculator has data entry for […] […]

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What is old is new: RPN on the HP 35s Scientific Calculator

Tweet When I comment on technology, I like to discuss the good and the bad about it. I don’t sell calculators, and I don’t get freebies to review. That gives me the freedom to freely comment. One has to admit that for HP to sell a $90 RPN calculator in this age of $20 textbook display calculators […] […]

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Zero

Tweet Once upon a time, around the year 525 during the reign of Pope John I, a monk named Dionysius invented the idea of Anno Domini by producing a calendar which marked the time since the birth of Christ. The numbering of the years was adopted for the Julian Calendar, a calendar created 600 years previous […] […]

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Magic Squares: Errata

Tweet There were some mistakes with the construction of the odd-ordered magic squares. These mistakes ought to give us hope in finding squares that, if n is odd, you will indeed get (n!)2 magic squares with a random method. I had always maintained that, and until now I never had a reason to question it. And […] […]

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Recreational Math I: Magic Squares: the “really good” kind – Part 7

Tweet Welcome to part 7, where the magic squares are 7×7. I don’t know if there is any numerological significance to that, but it wasn’t intended. Although, if someone wanted to make something of it, 7 was the number of known planets in medieval times, as well as the number of known elements, and the number […] […]

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Recreational Math I: Magic Squares: the “really good” kind – Part 6

Tweet I have met with some disappointment as to how a methodology for creating a 4×4 square should pan out, and instead I have come up with many different algorithms, each resulting in its own small sets of magic squares, but had stumbled upon a set of squares with similar “hyper-magical” properties which I called the […] […]

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Recreational Math I: 4×4 squares: Some sequences work better than others

Tweet I was experimenting with Danny Dawson’s 4×4 magic square script, and began to consider writing my own script. But I just thought I would do a few runs for my own research. I wanted to thank Mr. Dawson for his fine work which I am obviously gaining knowledge from, but his comments page thought I […] […]

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Recreational Math I: Magic Squares: the “really good” kind – Part 4

Tweet How to Make a Random Square I have noticed that it has been difficult to elucidate a method for systematically creating even-ordered magic squares of any but the most basic kind. I don’t know why this is, since the art has been alive in Europe for at least 600 years, and probably longer in other cultures. […] […]

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Recreational Math I: Magic Squares: the “really good” kind – Part 3

Tweet Notice that to show the rules for making these kind of magic squares, I used only odd-ordered square matrices as examples. What about matrices of even numbers of rows and columns? The rules for these vary. The famous Durer magic square, with the year of the engraving cleverly made a part of a […] […]

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Recreational Math I: Magic Squares: the “really good” kind – Part 2

Tweet Last time I introduced the idea of magic squares. I promised I would show you how to make one. In this post, I will begin by discussing “trivial” squares, or squares made by simple rules of following diagonals and wrapping. When I say a square is “magic”, I mean that all rows, columns, and diagonals add […] […]

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Recreational Math I: Magic Squares: the “really good” kind

Tweet Introduction ONE OF THE few things you see on the web these days is how to do a really good magic square. There are many websites that tell you about how spiralling arrangements of sequential numbers on a square matrix is magic, but for me, that’s dull. You are limited to doing seemingly less than a […] […]

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Getting f(x) notation to work in Maple

Tweet Maple is a robust math environment which can graph, solve equations, and solve for the unknown with the aid of its computer algebra solver (CAS), which is capable of computing exact roots of cubic functions, for example. I wanted to demonstrate for myself that Maple could do various function transformations, such as: f(x), f(x + 1), […] […]

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The TI-NSpire Programming Language

Tweet A couple of changes to the programming language, including the addition of a host of commands and libraries, and the Request “x”,y  command, have made the programming experience more pleasant on the Nspire. Finally, something that comes a giant step closer to behaving like a normal programming language. The assignment command using “STO>” doesn’t work the […] […]

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Version 2 of the TI Nspire operating system

Tweet My main complaint about the Nspire and Nspire CAS, the need to have some kind of input statement in its programmnig language, looks like it is closer to reality. I just have to fiddle with it some more to see if it can really place data in tables (or now, spreadsheets), and see if I […] […]

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My Geo-Trig Poem

Tweet You take tan b and × sin(cos(q+y)) and just to make it more complex ÷ cot(Δx) And so then by csc(Θ) × angles π, ρ, η and show that they continue on by proof with δ – ε. Once tidied-up you then inspect and find the answer incorrect So then you do the question over Once it’s right you then discover You were to do the even […] […]

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