Wolfram Demonstrations Project

The Demonstration shows Graham's square root extraction, based on the equivalence between

and

. Thus if the

ruler is marked with units that are 10 times as large as those on the

ruler, the green point will fall on the

ruler at

Reference

[1] L. A. Graham, Ingenious Mathematical Problems and Methods, New York: Dover Publications, 1959, pp. 74–75.

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Graham's Square Root Extractor