JuliaLang/julia — pull request #1372 by ViralBShah (2012-10-12 11:05:26+00:00)
Title: Performance updates for randn() to randmtzig.c.

I have modified randmtzig.c to use dSFMT's double precision random
numbers. It ends up using the randomness from the 52-bit Mantissa.
The code is changed to reflect this slightly lower precision.

This makes individual calls to randn() about 25% faster.