[Jprogramming] viewmat without a new window
Devon McCormick
devonmcc at gmail.com
Tue Feb 27 01:29:51 HKT 2007
Where is this "mathematical standard-notation" defined?
Of course this is a facetious question - it isn't defined anywhere:
there is no such thing.
J attempts to make mathematical notation consistent (and linear).
As Albert Einstein is reputed to have said: Common sense is the collection
of
prejudices acquired by age eighteen.
Similarly, mathematical standards are whatever an individual may have
picked up from the hodge-podge of inconsistent conventions with which
he has become familiar by a certain age.
And of course, in J, you can do as many have done and assign
names to the trig functions or simply load '~system\main\trig.ijs'
which has definitions like
cos=: 2&o.
already done for you.
Of course, you may have a different "standard" name for, say, the
arctangent function. Common ones in use are "atan", "tan-1", and "arctan".
On 2/26/07, vincent 1000 <1000vincent at gmail.com> wrote:
...
>The ideal would be a J which uses mathematical standard-notation wherever
>possible?
>What´s the use of inventing custom names for absolutely standard common
>trigonometric functions??????
--
Devon McCormick
^me^ at acm.
org is my
preferred e-mail
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