complex()

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Published Jul 6, 2021Updated Aug 7, 2023
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The complex() function converts a given string, or pair of numbers, into a complex number.

Syntax

result1 = complex(real, imaginary)
result2 = complex(string)
  • real is the real part of a complex number.
  • imaginary is the imaginary part of a complex number.
  • string is the string representation of a complex number.

Example

Use complex() to convert the string "1+7j" into a complex number:

num = complex("1+7j")
print(num)

This will result in the following output:

(1+7j)

Note: The passed string cannot contain whitespaces. A string such as, "1 + 7j", will result in an error.

Codebyte Example

Use complex() to convert the string "1.5" which is passed as a single parameter, into a complex number:

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