I recently needed to check some homework answers related to use of the quadratic formula. After realizing that it was getting tedious to do these by hand, I thought of using my calculator to solve ...

Proceedings of the American Mathematical Society, Vol. 130, No. 7 (Jul., 2002), pp. 1913-1922 (10 pages) Let $\Phi \subset \mathbb{Z}^n$ be one of the root systems An-1, Bn, Cn and Dn and write Φ(+) ...

The quadratic formula for a quadratic equation in the form of \(ax^2 + bx + c = 0\) is \(x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\). The first solution is \(x = \frac ...