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RedHat 9 (Linux i386) - man page for slamch (redhat section l)

SLAMCH(l)						  )						    SLAMCH(l)

NAME
SLAMCH - determine single precision machine parameters
SYNOPSIS
REAL FUNCTION SLAMCH( CMACH ) CHARACTER CMACH
PURPOSE
SLAMCH determines single precision machine parameters.
ARGUMENTS
CMACH (input) CHARACTER*1 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) LAPACK version 3.0 15 June 2000 SLAMCH(l)


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