Complex number
Concept history
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Revision 3279
8/31/2026, 9:04:15 PM · SalixBabylonica
Added exercise "Parties réelle et imaginaire de nombres complexe"
linked exercisesParties réelle et imaginaire de nombres complexes 1Parties réelle et imaginaire de nombres complexes 1, Parties réelle et imaginaire de nombres complexe
Revision 3272
8/31/2026, 9:01:26 PM · SalixBabylonica
Added exercise "Parties réelle et imaginaire de nombres complexes 1"
linked exercisesNoneParties réelle et imaginaire de nombres complexes 1
Revision 2206
8/24/2026, 7:31:22 AM · Ancient Tree
Updated text
Compare with revision 3794 changed lines
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 $i^{2}=-1$.1
A complex number is a number of the form2
$$z=a+bi$$3
where $a$ and $b$ are [[Real number|real numbers]], and $i$ is the [[imaginary unit|imaginary unit]], defined by $i^{2}=-1$.2
3
##### Remarks 4
- The set of all complex numbers is denoted $\mathbb{C}$.Revision 379
7/10/2026, 1:22:37 PM · Ancient Tree
Concept edited
Compare with revision 3625 changed lines
1
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
3
##### 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...