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Teachers' Lounge Discussion: Math Symbols

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From: Ron Corces

To: Teacher2Teacher Public Discussion
Date: 2002072606:31:46
Subject: Re: Meaning of

Regarding the use of  :=

I believe this comes from a software usage.  "MATHCAD" uses two
different equal signs.

If you wish to define a variable, you use the colon key. The software
displays  := on the screen.

If you want to return a numeric value, you enter the normal equals

MATHCAD  Example:   

Enter I:5        displays  I := 5
Enter J:I^2      displays  J := I^2

Enter J=         displays  J = 25


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