MathF.ReciprocalSqrtEstimate(Single) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Returns an estimate of the reciprocal square root of a specified number.
public:
static float ReciprocalSqrtEstimate(float x);public static float ReciprocalSqrtEstimate (float x);static member ReciprocalSqrtEstimate : single -> singlePublic Shared Function ReciprocalSqrtEstimate (x As Single) As SingleParameters
- x
- Single
The number whose reciprocal square root is to be estimated.
Returns
An estimate of the reciprocal square root x.
Remarks
On x86/x64 hardware this may use the RSQRTSS instruction which has a maximum relative error of 1.5 * 2^-12.
On ARM64 hardware this may use the FRSQRTE instruction which performs a single Newton-Raphson iteration.
On hardware without specialized support, this may just return 1.0 / Sqrt(x).
Applies to
Colaborați cu noi pe GitHub
Sursa pentru acest conținut poate fi găsită pe GitHub, unde puteți, de asemenea, să creați și să consultați probleme și solicitări de tragere. Pentru mai multe informații, consultați ghidul nostru pentru colaboratori.
