Complex number
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7/10/2026, 1:22:37 PM · Ancient Tree
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A complex number is...1
A complex number is a number of the form $z=a+bi$ where $a$ and $b$ are [[Real number|real numbers]], and $i$ is the [[imaginary unit|imaginary unit]], defined by $i^{2}=-1$.2
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##### Remarks 4
- The set of all complex numbers is denoted $\mathbb{C}$.Revision 362
7/9/2026, 9:46:09 AM · Ancient Tree
Concept created
A complex number is...