Texas Instruments
Texas Instruments: Finding the Roots of a Cubic Equation Math History
In this Derive activity, students understand how the software solves cubic equations and relate it to contributions made by del Ferro, Tartaglia, and Cardan in finding the method of solving cubic equations.
University of St. Andrews (UK)
University of St. Andrews: Biography Niccolo Fontana Tartaglia
This site provides detailed information on the life of Niccolo Fontana. Many links to interesting sites are available throughout this page.
University of St. Andrews (UK)
University of St. Andrews: Gottfried Wilhelm Von Leibniz
This site from the University of St. Andrews provides a biographical account of the life of Gottfried Wilhelm von Leibniz. Includes links to mathematics topics such as matrices and determinants, quadratic, cubic and quartic equations, etc.
Interactive Mathematics
Interactive Mathematics: Complex Numbers: Basic Definitions
After reviewing the process of solving quadratic and cubic equations, a definition of an imaginary number is given. Also included is a demonstration of simplifying powers of the imaginary number and writing complex numbers. Examples are...
Math Open Reference
Math Open Reference: Cubic Function Explorer
Learn about cubic functions with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.