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Multiplication with a Curve (the parabola y = x^2)

For more information, read Wrigley, Andrew. How to teach an old curve new tricks [online]. Vinculum, Vol. 52, No. 2, Apr 2015: 10-11. Availability:;dn=077983115131298;res=IELAPA ISSN: 0157-759X. If you like this, you'll love this... Multiplication on the Reals with a Circle! NOTE: The y axis has been re-scaled 1 : 10 to show the products up to 10 x 10. The same principle works with a standard y = x^2 parabola drawn with 1 : 1 axes as can be seen at