This is a type class for types with n-roots. The value returned by nroot
and sqrt are only guaranteed to be approximate answers (except in the case
of Real).
Also, generally nroots where n is even are not defined for
negative numbers. The behaviour is undefined if this is attempted. It would
be nice to ensure an exception is raised, but some types may defer
computation and testing if a value is negative may not be ideal. So, do not
count on ArithmeticExceptions to save you from bad arithmetic!
This is a type class for types with n-roots. The value returned by
nroot
andsqrt
are only guaranteed to be approximate answers (except in the case ofReal
).Also, generally
nroot
s wheren
is even are not defined for negative numbers. The behaviour is undefined if this is attempted. It would be nice to ensure an exception is raised, but some types may defer computation and testing if a value is negative may not be ideal. So, do not count onArithmeticException
s to save you from bad arithmetic!