Math.ReciprocalSqrtEstimate(Double) 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 double ReciprocalSqrtEstimate(double d);
public static double ReciprocalSqrtEstimate (double d);
static member ReciprocalSqrtEstimate : double -> double
Public Shared Function ReciprocalSqrtEstimate (d As Double) As Double
Parameters
- d
- Double
The number whose reciprocal square root is to be estimated.
Returns
An estimate of the reciprocal square root d
.
Remarks
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(d)
.
Applies to
意見反應
https://aka.ms/ContentUserFeedback。
即將登場:在 2024 年,我們將逐步淘汰 GitHub 問題作為內容的意見反應機制,並將它取代為新的意見反應系統。 如需詳細資訊,請參閱:提交並檢視相關的意見反應