I have this snippet of SML code which I'm trying to translate to Python:
fun isqrt n = if n=0 then 0
else let val r = isqrt (n/4)
in
if n < (2*r+1)^2 then 2*r
else 2*r+1
end
I've tried reading up on SML and can't make heads or tails of the
"let...in...end" construct.
The best I've come up with is this:
def isqrt(n):
if n == 0:
return 0
else:
r = isqrt(n/4)
if n < (2*r+1)**2:
return 2*r
else:
return 2*r+1
but I don't understand the let ... in part so I'm not sure if I'm doing
it right.
--
Steven D'Aprano
"Ever since I learned about confirmation bias, I've been seeing
it everywhere." -- Jon Ronson
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