Do yourself a favor and upgrade from what works to what works best.

For years, Rutgers physicist David Shih solved Rubik's Cubes with his children, twisting the colorful squares until the ...

Rex Heuermann agreed to talk to behavioral analysts at the F.B.I. when he pleaded guilty. The unit has interviewed Ted Bundy, ...

Abstract: For the conjugate gradient method to solve the unconstrained optimization problem, given a new interval method to obtain the direction parameters, and a new conjugate gradient algorithm is ...