# Answer on Algebra Question for dene

Question #3399

Can zero be negative?

Expert's answer

In ordinary arithmetics there is one zero,& -0 = +0 = 0,& but& the floating point arithmetics,& some computations, matematical analysis (one-sided limits) require positive and negative zeroes.& "-0" is also used in physics, that is& "-0 C" means the tamperature below freesing.

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