The Quadratic Equation Solver posted on this page solves for both real and imaginary (if applicable) results. Also on this site: solvers for the Cubic and Quartic equations, N Equations in N Unknowns, Eigenvalues and Eigenvectors, Cubic Spline Interpolati - Read more

A history of the roman alphabet, with factoids on typographical curiosities and information on other alphabets. See all the letters of the major alphabets of the world, both ancient and modern. - Read more