jimhefferon

109 ms·

1111.
by jimhefferon 14y ago
She studies how more students can learn Math better. Naturally underperforming students are a special interest. There are a number of good books. If you are interested, I found Boaler, J. (2009) What’s Math Got To Do With It? How Parents a
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by jimhefferon 14y ago
> And what's the motivation behind the formula for the determinant? FWIW, that book has two explanations: the first on p 296 is a lot like "that's how it works out" and the second on p 320 is geometric. > why does the determinant wo
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by jimhefferon 14y ago
I offer a Linear Algebra that is Free. Some years ago I was contacted by some people in California and prompted to apply to become some kind of official Free source in that state; it involved filling out some forms on some web sites. That
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by jimhefferon 14y ago
> everyone I've seen recently who has bought a tablet, bought a laptop within 6 months Yes, my wife got an IPad from work and after the initial excitement, at least around my house, the "I" proves to stand for "IMDB", which is its main
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by jimhefferon 14y ago
How do you dir on http?
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by jimhefferon 14y ago
> then we have missed the mark I don't agree. I have offered an open text, including free supplemental materials, for 15 years (so I think I have some credibility). But other people want to do other things. Free is Free for the autho
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by jimhefferon 14y ago
And, they won't let me enter "Scheme" as a language. It is tyranny. Years from now, when people say "remember 2010 and Facebook?" I'll remember. :-)
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by jimhefferon 14y ago
I had a friend who went to baseball umpire school. He said that the main thing they told students was, "Call it quick, call it loud, and then turn and walk away."
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by jimhefferon 14y ago
I remember them as being between the weight of a pack of cards and that of a dinner plate. I don't believe they were titanium - I'd guess they were stainless. Again, perhaps 10-12 inches in diameter and nothing in the middle; they were ju
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by jimhefferon 14y ago
I worked on the Hubble (my dad was systems manager for Perkin-Elmer's bid), on the ball bearings. They are literally the ones that were rejected from the spy sats. The spy sats bought a bunch of ball bearings (these might be a foot in diam
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by jimhefferon 15y ago
Of course, they were the top people in their fields and so attracted the top students. Having good people coming in helps with a person's production of great people.
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by jimhefferon 15y ago
A big factor was/is the prestige of Knuth.
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by jimhefferon 15y ago
Someone has already achieved Clojure. https://github.com/clojure/clojurescript
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by jimhefferon 15y ago
This has nothing to do with the quality of the text, and I appreciate someone using not-computer-modern for a TeX-ed text, but the capital T's are just strange.
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by jimhefferon 15y ago
Odd that the page does not describe at all what the book is about, but rather focuses on the delivery approach.
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by jimhefferon 15y ago
TeX and LaTeX are the standard in some academic fields, and in closely-associated industrial situations. In Math, LaTeX is standard. It is close to that in CS, and pretty close to that in Physics. There are some other academic fields whe
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by jimhefferon 15y ago
> the most popular template hadn't been updated since 1970 Not sure if you meant TeX as in plain TeX, or TeX as in the system in general. But there are many templates, many of them reasonably contemporary. For example see the ones at
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by jimhefferon 15y ago
These kinds of ideas are clear to everyone who has thought about the topic. But if I can interject some personal experience .. I've had an open source text up for more than a decade http://joshua.smcvt.edu/linearalgebra . It is easy to