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Floorf


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Description

Summary

A node of floor: the greatest integer not above the argument.

Remarks

On a complex argument it is taken componentwise, so that
floor(3/2 + 5/2i) is 1 + 2i. That is what SymPy and Mathematica
both do, and it is the only reading under which floor of a real number
keeps its meaning when the imaginary part happens to be zero.

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