double precision

Noun

Meaning

double precision (uncountable)

(computing) A number storage format that uses two adjacent locations in memory, allowing for greater precision in the values stored.

Examples

Any integer with absolute value less than 2 24 can be exactly represented in the single precision format, and any integer with absolute value less than 2 53 can be exactly represented in the double precision format. Source: Internet

An odd-even number pair of double precision registers can be used as a quad precision register, thus allowing 8 quad precision registers. Source: Internet

At 128 bits, the SSE XMMn registers could pack two double precision floats into one register. Source: Internet

It supported floating point in both 36-bit single-precision and 2 x 36-bit double precision, the exponent being stored separately, allowing up to 71 bits of precision (one bit being used for the sign). Source: Internet

Another example is double precision division and multiplication that works specifically with the AX and DX registers. Source: Internet

For example, the name of the BLAS function DGEMM function indicates that it operates on double precision numbers ('D') and general matrices ('GE'), and only the last two characters show what it actually does: matrix-matrix multiplication (the 'MM'). Source: Internet

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