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interval arithmetic
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From: |
Geordie McBain |
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Subject: |
interval arithmetic |
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Date: |
Mon, 4 Aug 2003 11:52:39 +1000 |
The Emacs program GNU Calc has this capacity. It allows `interval
forms' and `error forms': e.g.
sqrt([2 .. 4])
=> [1.41421356237 .. 2]
sqrt(3 +/- 1)
=> 1.73205080757 +/- 0.288675134595
>Not to say that something useful couldn't be done. It should be
>possible to pass
>numbers with a precision qualifier and propagate it through your
>equations, but
>nobody has done this and I don't know of any other numerical
>packages/spreadsheets
>that do.
>
>Happy computing,
>
>Willem
>
>
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