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Timeline for Fast inverse square root

Current License: CC BY-SA 3.0

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Oct 27, 2014 at 20:35 comment added SeanC @toothbrush, symbol for single is !. If I try either type declaration change in Excel, I get an error: Compile Error: Statement invalid inside Type block
Feb 22, 2014 at 14:20 comment added Toothbrush Smaller solution: Type x:q&:End Type:Type z:w As Single:End Type:Function q(n):Dim i As x,y As z:x=n/2:y.w=n:LSet i=y:i.q=&H5F3759DF-i.q/2:LSet y=i:q=y.w*(1.5-x*y.w*y.w):End Function
Nov 22, 2012 at 20:14 comment added ceased to turn counterclockwis +1 for the ridiculosity of using a BASIC dialect to golf a performance-related problem.
Nov 20, 2012 at 17:06 history answered SeanC CC BY-SA 3.0