Valentine Special

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#987

From: LUDVIK KOWALSKI
Date: Tue, 14 Feb 1995 02:24

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For math teachers.
                   Ask students to draw a graph of the following relation:

           y=0.75*x (+/-) sqr(1-x^2)    for x between -1 and +1

                   First with + then with -. It will be a heart.
                   Probably an old story but it was new to me.

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Date: Mon, 13 Feb 1995 21:24:00 EST
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From: LUDVIK KOWALSKI <KOWALSKI@APOLLO.MONTCLAIR.EDU>
Subject: Valentine Special
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