LAPACK  3.10.0
LAPACK: Linear Algebra PACKage
la_constants.f90 File Reference

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Modules

module  la_constants
 LA_CONSTANTS is a module for the scaling constants for the compiled Fortran single and double precisions
 

Variables

integer, parameter la_constants::sp = kind(1.e0)
 
real(sp), parameter la_constants::szero = 0.0_sp
 
real(sp), parameter la_constants::shalf = 0.5_sp
 
real(sp), parameter la_constants::sone = 1.0_sp
 
real(sp), parameter la_constants::stwo = 2.0_sp
 
real(sp), parameter la_constants::sthree = 3.0_sp
 
real(sp), parameter la_constants::sfour = 4.0_sp
 
real(sp), parameter la_constants::seight = 8.0_sp
 
real(sp), parameter la_constants::sten = 10.0_sp
 
complex(sp), parameter la_constants::czero = ( 0.0_sp, 0.0_sp )
 
complex(sp), parameter la_constants::chalf = ( 0.5_sp, 0.0_sp )
 
complex(sp), parameter la_constants::cone = ( 1.0_sp, 0.0_sp )
 
character *1, parameter la_constants::sprefix = 'S'
 
character *1, parameter la_constants::cprefix = 'C'
 
real(sp), parameter la_constants::sulp = epsilon(0._sp)
 
real(sp), parameter la_constants::seps = sulp * 0.5_sp
 
real(sp), parameter la_constants::ssafmin = real(radix(0._sp), sp)**max( minexponent(0._sp)-1, 1-maxexponent(0._sp) )
 
real(sp), parameter la_constants::ssafmax = sone / ssafmin
 
real(sp), parameter la_constants::ssmlnum = ssafmin / sulp
 
real(sp), parameter la_constants::sbignum = ssafmax * sulp
 
real(sp), parameter la_constants::srtmin = sqrt(ssmlnum)
 
real(sp), parameter la_constants::srtmax = sqrt(sbignum)
 
real(sp), parameter la_constants::stsml = real(radix(0._sp), sp)**ceiling( (minexponent(0._sp) - 1) * 0.5_sp)
 
real(sp), parameter la_constants::stbig = real(radix(0._sp), sp)**floor( (maxexponent(0._sp) - digits(0._sp) + 1) * 0.5_sp)
 
real(sp), parameter la_constants::sssml = real(radix(0._sp), sp)**( - floor( (minexponent(0._sp) - digits(0._sp)) * 0.5_sp))
 
real(sp), parameter la_constants::ssbig = real(radix(0._sp), sp)**( - ceiling( (maxexponent(0._sp) + digits(0._sp) - 1) * 0.5_sp))
 
integer, parameter la_constants::dp = kind(1.d0)
 
real(dp), parameter la_constants::dzero = 0.0_dp
 
real(dp), parameter la_constants::dhalf = 0.5_dp
 
real(dp), parameter la_constants::done = 1.0_dp
 
real(dp), parameter la_constants::dtwo = 2.0_dp
 
real(dp), parameter la_constants::dthree = 3.0_dp
 
real(dp), parameter la_constants::dfour = 4.0_dp
 
real(dp), parameter la_constants::deight = 8.0_dp
 
real(dp), parameter la_constants::dten = 10.0_dp
 
complex(dp), parameter la_constants::zzero = ( 0.0_dp, 0.0_dp )
 
complex(dp), parameter la_constants::zhalf = ( 0.5_dp, 0.0_dp )
 
complex(dp), parameter la_constants::zone = ( 1.0_dp, 0.0_dp )
 
character *1, parameter la_constants::dprefix = 'D'
 
character *1, parameter la_constants::zprefix = 'Z'
 
real(dp), parameter la_constants::dulp = epsilon(0._dp)
 
real(dp), parameter la_constants::deps = dulp * 0.5_dp
 
real(dp), parameter la_constants::dsafmin = real(radix(0._dp), dp)**max( minexponent(0._dp)-1, 1-maxexponent(0._dp) )
 
real(dp), parameter la_constants::dsafmax = done / dsafmin
 
real(dp), parameter la_constants::dsmlnum = dsafmin / dulp
 
real(dp), parameter la_constants::dbignum = dsafmax * dulp
 
real(dp), parameter la_constants::drtmin = sqrt(dsmlnum)
 
real(dp), parameter la_constants::drtmax = sqrt(dbignum)
 
real(dp), parameter la_constants::dtsml = real(radix(0._dp), dp)**ceiling( (minexponent(0._dp) - 1) * 0.5_dp)
 
real(dp), parameter la_constants::dtbig = real(radix(0._dp), dp)**floor( (maxexponent(0._dp) - digits(0._dp) + 1) * 0.5_dp)
 
real(dp), parameter la_constants::dssml = real(radix(0._dp), dp)**( - floor( (minexponent(0._dp) - digits(0._dp)) * 0.5_dp))
 
real(dp), parameter la_constants::dsbig = real(radix(0._dp), dp)**( - ceiling( (maxexponent(0._dp) + digits(0._dp) - 1) * 0.5_dp))