Hi Tomaz, I’m not talking about why ... I just show a fact 🙂 I never use -0 in my life but I am not God I am just a person.
Use or not it’s up to you 🙂
Because it's part of IEEE 754.
Apart from that, it's e.g. used to show that a small negative value was rounded up to zero (and not a positive one rounded down).
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