unitNormal x == zero? x => [1, x, 1] one? x => [1, 1, 1] re := real(x); im := imag(x) re > 0 => --im >= 0 => [1, x, 1] im > 0 => [1, x, 1] im < 0 => [-imaginary(), complex(-im, re), imaginary()] im <= 0 => [-1, -x, -1] [imaginary(), complex(im, -re), -imaginary()]
Given that zero? x is checked at the beginning and assuming that zero? x means "zero?(real(x)) and zero?(imag(x))", how can im=0 happen in the commented case?
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