A collection of animated GIF files and accompanying notes are used to explain a series of curves, loci and sections on this site. The topics are searchable in alphabetical order on the home page. Each leads to an explanation and an animation which takes the viewer from an equation to a model of the curve.
This is the Home page for Dr Ron Knott's multimedia web site on the Fibonacci numbers, the Golden section and the Golden string hosted by the Mathematics Department of the University of Surrey, UK A series of questions on solving equations and evaluating expressions, with answers provided.

Interactive geometry, algebra, statistics, and calculus software. Tens of thousands of free materials.
An uncomplicated but effective online graphic calculator, this tool is able to plot up to four curves on the same Cartesian plane. Equations can include all powers of x as well as trigonometric exponential and logarithmic functions, although there is no capacity for inverse functions.
Mathematics can only be studied well by doing questions: Make up a realistic study timetable, put mathematics early in the evening, do practice papers in the textbook
