bug6357.input

)cl all
-- The original author assumed (roughly) that sqrt(1/x)=1/sqrt(x),
-- which is wrong (for example,
-- sqrt(-1/2) = %i/sqrt(2) != 1/(%i*sqrt(2)) = -%i/sqrt(2)
sqrt(-1/2)
sqrt(-1/abs(x))-1/sqrt(-abs(x))