multiprecision arithmetic

multiprecision arithmetic

[¦məl·tə·prə′sizh·ən ə′rith·mə‚tik]
(computer science)
A form of arithmetic similar to double precision arithmetic except that two or more words may be used to represent each number.
References in periodicals archive ?
Implementing these sums and products is tedious but straightforward for multiprecision arithmetic. If we want a quad-precision result, we can exploit special hardware available on some machines.