License | BSD-style |
---|---|
Maintainer | Vincent Hanquez <vincent@snarc.org> |
Stability | experimental |
Portability | Good |
Safe Haskell | None |
Language | Haskell2010 |
Documentation
sqrti :: Integer -> (Integer, Integer) #
sqrti
returns two integers (l,b)
so that l <= sqrt i <= b
.
The implementation is quite naive, use an approximation for the first number
and use a dichotomy algorithm to compute the bound relatively efficiently.
gcde :: Integer -> Integer -> (Integer, Integer, Integer) #
Get the extended GCD of two integer using integer divMod
gcde a
b
find (x,y,gcd(a,b)) where ax + by = d
asPowerOf2AndOdd :: Integer -> (Int, Integer) #
Express an integer as an odd number and a power of 2