MathF.ReciprocalEstimate(Single) Method
Definition
Important
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Returns an estimate of the reciprocal of a specified number.
public:
static float ReciprocalEstimate(float x);public static float ReciprocalEstimate (float x);static member ReciprocalEstimate : single -> singlePublic Shared Function ReciprocalEstimate (x As Single) As SingleParameters
- x
- Single
The number whose reciprocal is to be estimated.
Returns
An estimate of the reciprocal of x.
Remarks
On x86/x64 hardware this may use the RCPSS instruction which has a maximum relative error of 1.5 * 2^-12.
On ARM64 hardware this may use the FRECPE instruction which performs a single Newton-Raphson iteration.
On hardware without specialized support, this may just return 1.0 / x.
Applies to
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