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VRSQRT14PD

Computes approximately $1/\sqrt{x}$ for each double-precision floating-point value in a vector, with a relative error of less than $2^{-14}$.

The following table covers what the source and destinations can be.

DO NOT support LOCK

This instruction is only available when the processor supports the AVX-512 foundation. It requires the execution environment to be in 64-bit mode or compatibility mode.

The instruction does not provide the full precision of a standard square root and reciprocal operation; it is an approximation. If higher precision is required, the result SHALL be used as an initial guess for a Newton-Raphson iteration. The instruction may trigger #P if the result is inexact. If the input is NaN, the result is the same NaN. If the input is $\pm 0$, the result is $\pm \infty$ and #Z is signaled. If the input is negative, the result is $qNaN$ and #I is signaled.