double precision


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double precision

[¦dəb·əl prə′sizh·ən]
(computer science)
The use of two computer words to represent a double-length number.

double precision

Using two computer words instead of one to hold a number used for calculations, thus allowing twice as large a number for more arithmetic precision. Contrast with single precision.
References in periodicals archive ?
On GPUs, double precision GFLOPS is smaller than the single precision [11], which results in faster executions when floating point numbers are used.
This can result in the performance improvement of IPCSR being faster than other algorithms from double precision to single precision.
As it can be seen, Algorithm B is only slightly slower than the compared ones for the single precision case, while is as fast as the compared ones for the double precision case.
5, it is shown that input_a first converted to floating point number format and it is 4018000000000000h, which is the IEEE 754 double precision floating-point format of decimal value 6.
Furthermore, our test tool diagnosed, in single and double precision, that the v-underflow strategy is implemented on the Sun SuperSparc, while the w-underflow strategy is implemented on the more recent Sun UltraSparc.
Moreover, for sparse matrices stored in double precision the CRS format is about 30% more efficient in terms of memory usage than the COO format.
l: long double precision and exponent range (t = 64 and [L, U] = [-16382, 16383])
Park and Miller suggest using double precision or use of computers able to handle integers of up to 50 bits or fairly elaborate programs that perform extended-precision arithmetic by breaking integers into parts then doing arithmetic on, before combining, the parts.
The length of these vectors grows with the desired accuracy--the transition from standard to double precision would triple the size of the tables in FL.
Double precision floating point support is included to address key industrial market requirements.