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SCALAR-BY-MATRIX MULTIPLICATION [1 record]

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Record 1 2001-09-05

English

Subject field(s)
  • Computer Mathematics
  • Computer Graphics
CONT

There are tow types of matrix multiplication: scalar-by-matrix multiplication and matrix-by-matrix multiplication. As a noun, a scalar is a single number or scale factor that all the matrix elements are multiplied by in scalar multiplication. This is used to scale down all the elements of a matrix in equal proportion. In graphics, this is used on row and column vectors that represent points in space. It moves a point radially toward or away from the origin (0,0,0). This is often done to put the values of x,y, and z within a range that graphics routines can more easily handle, especially when integer arithmetic is being performed.

French

Domaine(s)
  • Mathématiques informatiques
  • Infographie

Spanish

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