In a recent paper, G. E. Forsythe proved that the maximum M(ρ) and minimum m(ρ) of a positive definite quadratic polynomial in R n on a sphere with fixed center are both convex functions of the radius ...
Google is celebrating the quadratic equation with a special Doodle today, November 12. The Doodle highlights one of mathematics’ most recognised and widely applied formulas, bringing an everyday ...
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