>Andrew Bennett
>Sat, 11 Mar 2006 17:24:51 -0800
>
>On Sat, 11 Mar 2006 13:44:52 +0100, Pianoman wrote:
>
>>Hi, I need to perform very fast squareroot (sqrt) operations on double
>> type nukmbers.
>>I tried this
>>function mysqrt(a:double):double;
>> [...]
>>yn:=(y*y+a)/(2*y);
>>until abs(yn-y) <
On Sat, 11 Mar 2006 13:44:52 +0100, Pianoman wrote:
>Hi, I need to perform very fast squareroot (sqrt) operations on double type
>nukmbers.
>I tried this
>function mysqrt(a:double):double;
>var y,yn:double;
>begin
>yn:=a;
>repeat
>y:=yn;
>yn:=(y*y+a)/(2*y);
>until abs(yn-y) < 10e-16;
>mysqrt:=yn;
