In the plane, using Cartesian coordinates, a circle with radius 1 with center at the origin is described by the equation x2 + y2 = 1. In other words, this circle is the set of all points of the form (x, y) in the plane that satisfy the above equation....

In Euclidean geometry, a translation is moving every point a constant distance in a specified direction. It is one of the rigid motions (other rigid motions include rotation and reflection). A translation can also be interpreted as the addition of a...

A test item exhibits differential item functioning (DIF) if students with the same ability find it differentially difficult. When the item is administered in French and English, differences in language difficulty and meaning are the most likely explanations. However, curriculum differences may also contribute...

In My View I've never been much for math, except that I was pretty good at algebra for a while (partly because it was like a detective story, but mostly because my teacher looked like Grace Kelly). Regardless, it was never as bad...

Google Inc. planned to introduce a feature Wednesday that automatically translates Internet search requests and results in 12 languages, underscoring the rapidly growing company's ambitions outside the United States.The tools allow Google's users to enter search requests in their native languages and then choose to...

An Arabic language expert testified Monday that the FBI inaccurately translated some telephone intercepts of three suspected terrorism supporters, and said words that prosecutors say were code for violence have innocent alternative meanings.Translator Kamal Yunis was the first witness called by the defense in the...