Monthly Archives: February 2014

Do-it-Yourself Learning: Creating a times table in J, Part 2

J can solve any arithmetic problem that a pocket calculator or calculator app can solve, only you enter the numbers as an interpreter line command. Suppose you wanted to find out how many seconds there are in a day. The … Continue reading

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Do-It-Yourself Learning: APL and J: Secret treasures of Math, part 1.

Many of you now probably use the pocket calculator type apps available for “smart” phones, as we once used a pocket calculator.   At the time, the pocket calculator was a Godsend for the math impaired. Those who were not confident of … Continue reading

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Another personal note

Today would have been my parents 70th Wedding Anniversary.  I remember I took them out for a nice quiet dinner overlooking the golf course in 1994, their fiftieth.  I was 45 years old and they were both in their 80’s. … Continue reading

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An Asteroid, Bolide, Meteor Roundup one year after Chelyabinsk

          This  picture is  from a Space.com  article by Mike Wall remembering the one year anniversary of the Chelyabinsk Asteroid event.  In the picture, it looks as if the angle of entry is about  20 degree … Continue reading

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On this Valentine’s Day, a special Valentine to Shirley Temple, R.I.P.

There is a tinge of sadness this Valentine’s Day with the passing of America’s little sweetheart from long ago, Shirley Temple.  Looking at her now through adult eyes, she was an incredibly talented  and brilliant actress with a wonderful personality. … Continue reading

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Rational planned solutions versus Custom

Rational planned solutions will rarely if ever trump custom.  Look at the months of the year.  In almost every European language except Finnish, the last four months of the year are 9=September, 10=October, 11=November, and 12=December.  They are spelled differently … Continue reading

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Could the English written numbers be the source of our math learning woes? Part 2.

What is the  Cantonese number system that Stanislas Dehaene thinks so highly of? Below we have the Cantonese numbers rendered in Arabic Numerals and the Roman Alphabet.  This is not how they are used.  These Cantonese numbers  in every day … Continue reading

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Spectacular Martian impact crater spotted by orbiter camera

There is a great picture of this Martian impact at ars techica in an article published last week.  Check it out.  Thanks again to Instapundit for the tip.

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Could the English written numbers be the source of our math learning woes? Part 1.

Malcolm Gladwell in his book Outliers discusses the significant advantages Asian children have in learning mathematics, beginning with remembering the numbers, counting, and doing simple arithmetic.  Gladwell  cites Stanislas Dehaene’s book The Number Sense  in which Dehaene discusses the brevity of … Continue reading

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kaksituhattaneljatoista

No, I’m not sending you a coded message, although  there is a message in this post.  We often hear that some foreign languages are more difficult than others.  There are some that are more intimidating than others, mostly because there … Continue reading

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