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- Newsgroups: sci.math
- Path: sparky!uunet!charon.amdahl.com!pacbell.com!sgiblab!sgigate!sgi!wdl1!wdl39!mab
- From: mab@wdl39.wdl.loral.com (Mark A Biggar)
- Subject: Re: Square root of a number
- Message-ID: <1992Nov18.212620.14220@wdl.loral.com>
- Sender: news@wdl.loral.com
- Organization: Loral Western Development Labs
- References: <1992Nov15.194049.1@woods.ulowell.edu> <1992Nov18.114710.28333@rz.uni-karlsruhe.de>
- Date: Wed, 18 Nov 1992 21:26:20 GMT
- Lines: 32
-
- The geometric constructions of square roots is quite nice.
-
- Assuming you have a line segment of length X and a line segment of length 1.
- Consturct a segment of length X+1. Construct a circle with that segment as
- its diameter. Construct a perpendicular 1 unit from the edge of the circle
- (i.e. at the point between the X lenght segment and the 1 lenght segment) on
- the diameter. The distance between the diamenter and the point where the
- perpendicular intersect is the square root of X. I will try to draw a diagram
- to the limits of Ascii.
- +
- |
- |
- |
- | sqrt(X)
- |
- |
- |
- +---------------------+---------+
- X 1
-
- imagine there is a semicircle in above diagram
-
- The above construction can be found in Euclid.
-
- --
- Mark Biggar
- mab@wdl1.wdl.loral.com
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