precisionreturns , the value machine precision.
For full information please refer to the NAG Library document for x02aj
, the value machine precision.
precisionreturns machine precision, computed as , where is the arithmetic base (see
model_base()) and is the number of significant base- digits (see
It is important to note that the definition of here differs from that in ISO Fortran 95 (1997).
ISO Fortran 95, 1997, ISO Fortran 95 programming language, (ISO/IEC 1539–1:1997)