A complex number $a + bi$ has a real part $a$ and an imaginary part $b$.
But, what about dual numbers $u + v\epsilon $? I have seen the non-real part $v$ been called the infinitesimal part. Is this a common convention? Or is there a different one?
2026-05-16 13:04:50.1778936690
How is the second part of a dual number called?
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