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A comment on Imaginary numbers are real. Parent comment

Re:Imaginary numbers are real by kragen on Sunday July 24, 2022 @05:08PM (#32217745)
That is in fact what we do in IEEE 754 floating point! We have +0 and -0; 1/+0 = +∞ and 1/-0 = -∞. However, this means that IEEE 754 floating point violates substitutability, the most basic property of equality, because +0 == -0 but in some cases f(+0) ≠ f(-0).

You may enjoy Tom 7's paper/movie about this: http://tom7.org/nand/

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