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John T. Tate, Familiar Name in the World of Numbers, Dies at 94

That Vexing Math Equation? Here’s an Addition

One Giant Step for a Chess-Playing Machine

This Is the Way the Paper Crumples

Fields Medals Awarded to 4 Mathematicians

Bending the Rules of Geometry

Cathleen Morawetz, Mathematician With Real-World Impact, Dies at 94

Marina Ratner, Émigré Mathematician Who Found Midlife Acclaim, Dies at 78

A Lizard With Scales That Behave Like a Computer Simulation