In order to set the stage for a definition of combined variation, we will first discuss some of the more basic types of variation. A quantity y is said to vary directly as x if y=kx, where k is a constant, called the constant of variation. In this...

In mathematics, a functional is traditionally a map from a vector space of functions usually to real numbers. In other words, it is a function that takes functions as its argument or input and returns a real number. Its use goes back to the calculus of...

As I write this article, the mathematics education community is being asked to consider proposals for 'functional mathematics'. In this context, I am not the first, nor shall I be the last, to ask the question 'What is mathematics?', but is my 2006 perspective...

The Association of Teachers of Mathematics is very disappointed that the government has rejected so much of the Tomlinson report. Those of us involved in mathematics education awaited the government's response [1 ] to Tomlinson with particular interest because, after all, in their response...

The Photoshop CS2 (version 9.0) for Windows work area is designed to help you maximize your workspace and give you easy access to tools, options, and palettes. In the default work area, the toolbox is located on the left, the menu bar and options bar...

NFL clubs may no longer serve alcohol at team functions or on buses or flights, extending a ban that until now applied only in locker rooms.NFL owners and executives were told Thursday by commissioner Roger Goodell that the rule pertains not only to players but...