std.math performance (SSE vs. real)

[Russel Winder via Digitalmars-d]

On Sun, 2014-06-29 at 12:18 -0700, Walter Bright via Digitalmars-d
wrote:
[…]
> Doubles are only good to 17 digits, and even that 17th digit is flaky.

Hence the use of software "real" numbers becoming the norm for
calculating these bioinformatics and quant models.

(I rarely see better that 14 or 15 denary digits of accuracy for 64-bit
fp hardware. :-(

-- 
Russel.
=============================================================================
Dr Russel Winder      t: +44 20 7585 2200   voip: sip:russel.winder at ekiga.net
41 Buckmaster Road    m: +44 7770 465 077   xmpp: russel at winder.org.uk
London SW11 1EN, UK   w: www.russel.org.uk  skype: russel_winder
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