Nth root in fpu_$FUNCTION does not exist, why?

[sossego]

Why is there only a square root function in the POWER architecture and no other roots?

 

[fnucc]

Because square root is an important function in math, image processing, signal processing... It must be done precisely and fast. Other roots are, well, other roots

 

[SNK]

Yea, I suppose the square root is most common and thus gets special treatment. But just use the power function to compute the other roots?

 

[fonz]

But just use the power function to compute the other roots?

Why not? That's essentially what they are anyway.

Fonz