Excel can solve equations through several of its mathematical functions, but the single Excel tool that works on the largest variety of equations is the program's Solver Add-in.

Santosh Vempala, along with Richard Peng, came up with a new, faster way of solving certain linear equations, “the workhorse of modern computation” according to Vempala.

We consider a class of iterative algorithms for solving systems of linear equations where the coefficient matrix is nonsymmetric with positive-definite symmetric part. The algorithms are modelled ...