> Dec Alpha DEC Vax Sun Ultra
> Sun Ultra Intel PC Intel PC
> Openvms NAG F90 Sun f90
> NagAcef90 Salford/Nag ftn90 DEC DVF
>
> Double : :
Sorry, what are these figures supposed to mean?
> dp*de = 8.53973422267357 = 8.5397342226735671
> =8.5397342226735677 = 8.5397342226735677 = 8.539734222673566 =
> 8.53973422267357
> dble(sp*se) = 8.53973388671875 = 8.5397338867187500
> =8.53973388671875 = 8.5397338867187500 = 8.539734200979865 =
> 8.53973388671875
> dprod(sp*se) = 8.53973420097986 = 8.5397342009798649
DPROD (sp, se) ?
> =8.5397342009798649 = 8.5397342009798649 = 8.539734200979865 =
> 8.53973420097986
> dble(sp)*dble(se) = 8.53973420097986 = 8.5397342009798649
> =8.5397342009798649 = 8.5397342009798649 = 8.539734200979865 =
> 8.53973420097986
>
> Single
>
>
> sp*se = 8.539734 = 8.5397339
> =8.53973389 = 8.5397339 = 8.539734 =
> 8.539734
> real(dp*de) = 8.539734 = 8.5397339
> =8.53973389 = 8.5397339 = 8.539734 =
> 8.539734
> real(dble(sp)*dble(se)) = 8.539734 = 8.5397339
> =8.53973389 = 8.5397339 = 8.539734 =
> 8.539734
> real(dprod(sp,se)) = 8.539734 = 8.5397339
> =8.53973389 = 8.5397339 = 8.539734 =
> 8.539734
>
>
>
> Single Precision Epsilon 0.12E-06 0.12E-06
> 0.12E-06 0.12E-06 0.12E-06 0.12E-06
>
> Single Precision Nearest 8.602234 run-time
> 8.53973484 8.5397348 8.539735 8.539735
> Ian Chivers
> [log in to unmask]
>
>
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