A locus is a set of points that contains all the points, and only the points, that satisfy the condition, or conditions, required to describe a geometric figure. The word locus is Latin for place or location. A locus may also be defined as the path...

Sometimes it is useful in mathematics to describe the path that a point traces as it moves in a plane to meet certain conditions. For example, what is the path that a point on the end of the second hand of a clock traces in 60 seconds? This answer, of...

In mathematics, a locus (Latin for "place", plural loci) is a collection of points which share a property. The term 'locus' is usually used of a condition which defines a continuous figure or figures, that is, a curve. For example, a line is the locus...

Mix a troubadour, some William Blake writings, and some off-kilter melodies and you have Rio en Medio. But you’ll also need some ukulele, cello, electronic percussion, and a saw. Add a dash of Jew’s harp, also. Oh, don’t forget some quiet psychedelica. Rio en Medio...

The idea of reincarnation is a bit too ethereal for use as an investment tool. But leading stocks often do give up the ghost, then return, sometimes years later, to yield solid gains. CAN SLIM rules help determine whether and when to jump back in.Case...

My Life in CIA: A Chronicle of 1973, by Harry Mathews. Dalkey Archive Press, 203 pages, $13.95.A few weeks ago, the arts section of The New York Times turned its solemn eye on literary fiction. On Monday, the fine novelist and short-story writer Steve Stern...

“The space is so beautiful and has, kind of, not been touched in about a hundred years,” crooned David Maupin, co-owner of Lehmann Maupin Gallery, last Friday morning in his office on West 26th Street. He was referring to 201 Chrystie Street, a two-story...