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0 pointsthegeomaster2y ago0 comments

What do you mean by "taking the square root"? sqrtps has exactly the same problem, it's not standardized, so you need a custom algorithm.

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dooglius2y ago

Sqrt is standardized by IEEE, it is required to be the correctly rounded value.

stephencanon2y ago

square root is an IEEE 754 basic operation, correctly rounded (and therefore bitwise reproducible) on all compliant systems. What made you think that it isn't?

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0 pointsthegeomaster2y ago0 comments

What do you mean by "taking the square root"? sqrtps has exactly the same problem, it's not standardized, so you need a custom algorithm.

0 comments

dooglius2y ago

Sqrt is standardized by IEEE, it is required to be the correctly rounded value.

stephencanon2y ago

square root is an IEEE 754 basic operation, correctly rounded (and therefore bitwise reproducible) on all compliant systems. What made you think that it isn't?

j / k navigate · click thread line to collapse