numeric coprocessor



  • An arithmetic-logic unit designed to perform floating-point operations. A CPU may have such a processor incorporated, or a second chip may be utilized. Numeric coprocessors are especially useful when a computer performs sophisticated calculations, such as those frequently needed in CAD, spreadsheet, and scientific programs. Also spelled numeric co-processor. Also called floating-point processor, floating-point coprocessor, floating-point unit, or math coprocessor.