A mathematical circuit that performs high-speed floating point operations. Also called a "floating point unit" (FPU), the math coprocessor may be a stand-alone chip or circuits built into the CPU.

Calculations made upon dates. For example, March 30 + 5 yields April 4. Date math was the crux of the Y2K problem. In Y2K compliant systems, calculating dates with the full four-digit year yielded the ...