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Some interesting blogs and websites These are a small (but growing) list of nonCAC blogs:

By strider, on August 22nd, 2011
Tweet Yesterday, I told another fellow computer geek an ’80s DOS joke about being prompted to “Enter any 11digit 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 […] […]
Go to article How to spend an idle afternoon
By strider, on March 7th, 2011
Tweet When there are no serious researchers that would place any relevance on IQ and what it measures (indeed, what exactly is it measuring is itself a mystery: does intelligence even have a definition, or am I missing out on something?), I wonder why there are web sites which even go so far as to go […] […]
Go to article The Psychology Contrarian I: The obsession with IQ
By strider, on February 5th, 2011
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 “hypermagical” properties which I called the […] […]
Go to article Recreational Math I: Magic Squares: the “really good” kind – Part 6
By strider, on January 22nd, 2011
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 […] […]
Go to article Recreational Math I: Magic Squares: the “really good” kind – Part 2
By strider, on April 6th, 2010
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 […] […]
Go to article Version 2 of the TI Nspire operating system
By strider, on December 2nd, 2009
Tweet Hiroshi Uchiyamada (19362006) and The Cool Five are a Japanese group that proves that not knowing how to count is not merely a symptom of brainless white North American schoolchildren anymore, if it ever was. Determined to smash through Oriental stereotypes (after we sing a tune, join us for some Calculus!), the Cool Five have […] […]
Go to article Crappy Album Covers #190 — I Can’t Count
By strider, on May 10th, 2009
Tweet The TINspire comes with a great deal of programming tools, but after many updates, it is still crippled by the lack of an input statement. Without input, what you have is a collection of functions. You have to run and rerun functions with new parameters each time to enter a list. Of course they provide their spreadsheet, […] […]
Go to article Programming on the TI84, Nspire and Nspire CAS
By strider, on March 31st, 2009
Tweet My marble adding machine in action. More at http://woodgears.ca/marbleadd What impressed me is not just the fact that it looks like it could be used as 1) a great woodworking project, and 2) a great computer science tool in grade 10. [vodpod id=ExternalVideo.797953&w=425&h=350&fv=%26rel%3D0%26border%3D0%26] more about “Marble adding machine“, posted with vodpod There is another video that explains […] […]
Go to article Binary adding machine using marbles
By strider, on November 23rd, 2008
Tweet This is the TINspire, the calculator that promises to foment lazier minds in students than ever before. I teach math, and I look at all these new calculators with jaundiced eye. Ever see the new caclulators these days (nongraphing) which can come up with exact answers to sum and difference functions of trig angles? This […] […]
Go to article The TIInspire is not what it is cracked up to be
By strider, on May 2nd, 2008
Tweet I think that I shall never c A # lovelier than 3; For 3 < 6 or 4, And than 1 it’s slightly >. All things in nature come in 3s, Like ∴, trio’s, Q.E.D.s; While $s gain more dignity if augmented 3 x 3 — A 3 whose slender curves are pressed By banks, for compound interest; Oh, would that, paying loans or rent, My […] […]
Go to article Threes (by John Atherton)
By strider, on May 2nd, 2008
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 tidiedup 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 […] […]
Go to article My GeoTrig Poem

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