Normal (geometry) Normal (geometry) In geometry, a normal is an object such as a line or vector that is perpendicular to a given object. For example, in two dimensions, the normal line to a curve at a given point is the line perpendicular to the tangent line to the curve at the point. In three dimensions, a surface normal, or simply normal, to a surface at a point "P" is a vector that is perpendicular to the tangent plane to that surface at "P". The word "normal" is also used as an adjective: a line normal to a plane, the normal component
Cut & Paste (word processor) program. Its few good points are far outweighed by its many bad ones. In action, it seems closer to an electronic typewriter than a computerised word processor." "BYTE" said that Cut & Paste "is simple to use but unfortunately it's much too limited to be of great value as a serious word processor", recommending it for children learning how to use a computer. Arthur Leyenberger in an August 1984 review for "ANALOG Computing" wrote, "The user interface is probably Cut & Paste's strongest feature," and "I was able to start typing this review using the program as soon as I