Think you’ve mastered quadratic equations? Think again! This insanely tricky problem will put your algebra skills to the ...

For each branch/line, the BFM contains a nonconvex quadratic equality. A mathematical formulation of its convex hull is proposed, which is the tightest convex relaxation of this quadratic equation.

Commissioned by Texas Instruments, the EdWeek Research Center surveyed K-12 educators about their usage and experiences with handheld ...