Both are exactly 0.0. Regarding signed zero, read this paper from Kahan: https://homes.cs.washington.edu/~ztatlock/599z-17sp/papers/branch-cuts-kahan-87.pdf ht

Both are exactly 0.0. Regarding signed zero, read this paper from Kahan: https://homes.cs.washington.edu/~ztatlock/599z-17sp/papers/branch-cuts-kahan-87.pdf https://homes.cs.washington.edu/~ztatlock/599z-17sp/papers/b...