slamch.f man page
REAL function slamch (CMACH)
REAL function slamc3 (A, B)
REAL function slamc3 (realA, realB)
SLAMC3 is intended to force A and B to be stored prior to doing the addition of A and B , for use in situations where optimizers might hold one of these in a register.
LAPACK is a software package provided by Univ. of Tennessee, Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..
The values A and B.
Definition at line 171 of file slamch.f.
REAL function slamch (characterCMACH)
SLAMCH determines single precision machine parameters.
Specifies the value to be returned by SLAMCH: = 'E' or 'e', SLAMCH := eps = 'S' or 's , SLAMCH := sfmin = 'B' or 'b', SLAMCH := base = 'P' or 'p', SLAMCH := eps*base = 'N' or 'n', SLAMCH := t = 'R' or 'r', SLAMCH := rnd = 'M' or 'm', SLAMCH := emin = 'U' or 'u', SLAMCH := rmin = 'L' or 'l', SLAMCH := emax = 'O' or 'o', SLAMCH := rmax where eps = relative machine precision sfmin = safe minimum, such that 1/sfmin does not overflow base = base of the machine prec = eps*base t = number of (base) digits in the mantissa rnd = 1.0 when rounding occurs in addition, 0.0 otherwise emin = minimum exponent before (gradual) underflow rmin = underflow threshold - base**(emin-1) emax = largest exponent before overflow rmax = overflow threshold - (base**emax)*(1-eps)
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
Definition at line 68 of file slamch.f.
Generated automatically by Doxygen for LAPACK from the source code.
slamc3(3) and slamch(3) are aliases of slamch.f(3).