A complex number is a number of the form \(a+bi\), where \(a\) and \(b\) are both real numbers and \(i\) is the so-called imaginary number, that is, \(i^2=-1\).
The set of complex numbers is a field, and in particular is the algebraic closure of the real numbers.
- [MLA] “complex number.” Platonic Realms Interactive Mathematics Encyclopedia. Platonic Realms, 25 Mar 2013. Web. 25 Mar 2013. <http://platonicrealms.com/>
- [APA] complex number (25 Mar 2013). Retrieved 25 Mar 2013 from the Platonic Realms Interactive Mathematics Encyclopedia: http://platonicrealms.com/encyclopedia/complex-number/