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[ 1.6.0 ▼ ](http://pytorch.org/docs/versions.html)

Notes

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  * [ torch ](torch.html)
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  * Complex Numbers 
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  * [ Docs ](index.html) >
  * Complex Numbers 
  * [ ![](_static/images/view-page-source-icon.svg) ](_sources/complex_numbers.rst.txt)

Shortcuts

#  Complex Numbers  ¶

Complex numbers are numbers that can be expressed in the form  a  \+  b  j  a
+ bj  a  \+  b  j  , where a and b are real numbers, and _j_ is a solution of
the equation  x  2  =  −  1  x^2 = −1  x  2  =  −  1  . Complex numbers
frequently occur in mathematics an