A number Usually used in contexts where there are also vectors around, or functions Examples of usage: "the length of a vector is a scalar;" "-3 sin x is a scalar multiple of sin x "
a variable quantity that cannot be resolved into components of or relating to a directionless magnitude; "scalar implicatures
Any physical quantity whose field can be described by a single numerical value at each point in space A scalar quantity is distinguished from a vector quantity by the fact that a scalar quantity possesses only magnitude, whereas a vector quantity possesses both magnitude and direction
(1) In Fortran 90, a single object of any intrinsic or derived type A structure is scalar even if it has a component that is an array The rank of a scalar is 0 (2) A nonvectorized, single numerical value that represents one aspect of a physical quantity and may be represented on a scale as a point This term often refers to a floating-point or integer computation that is not vectorized; more generally, it also refers to logical and conditional (jump) computation
Pertaining to data items with a rank of zero A single data object of any intrinsic or derived data type Contrast with array See also rank-one object