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Theorems Connected with Inversion

Published online by Cambridge University Press:  03 November 2016

C. E. M‘Vicker
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Extract

The square of the tangent from a point P to a circle S, divided by the diameter of S, will, in what follows, be denoted by (PS).

If S open out into a straight line, it is easily seen that (PS) equals in the limit the perpendicular distance of P from this line; accordingly the length of the perpendicular from a point P on a straight line S will be denoted by the same symbol (PS).

Type
Research Article
Information
The Mathematical Gazette , Volume 1 , Issue 18 , October 1899 , pp. 276 - 278
Copyright
Copyright © Mathematical Association 1899 

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References

page 277 note * (c) is equivalent to Q. 14265, Educational Times, by. Mr. R. F. Davis, and suggested this method to the writer.