On Monday, 16 May 2016 at 06:46:59 UTC, Walter Bright wrote:
On 5/15/2016 10:37 PM, Manu via Digitalmars-d wrote:
[...]
Because, as I explained, that results in a 2x or more speed
degradation (along with the loss of accuracy).
[...]
I used to do numerics work professionally. Most of the troubles
I had were catastrophic loss of precision. Accumulated roundoff
errors when doing numerical integration or matrix inversion are
major problems. 80 bits helps dramatically with that.
A classic example... :-)
http://www.stsci.edu/~lbradley/seminar/butterfly.html
