For a rational matrix function Φ with poles outside the unit circle, we estimate the degree of the unique superoptimal approximation 𝒜Φ by matrix functions analytic in the unit disk. We obtain sharp ...

Physicists are now using principles from quantum mechanics to build a new model of the abstract concept of pi. Or, more ...

Pi Approximation Day is celebrated every July 22 It celebrates math that pi has allowed people to do People can commemorate the occasion in many ways Pi enthusiasts have another excuse to celebrate ...

Audrey Harrington is a seventh-grade math teacher at the Wilson County School System's Southside Elementary School in Lebanon, Tenn. Online video games plus curriculum-based math equals an engaging ...