# Complex Integration

**URL:** <https://discourse.julialang.org/t/complex-integration/99544>\
**Category:** Numerics\
**Tags:** question, package\
**Created:** [May 29, 2023, 7:57am UTC](https://discourse.julialang.org/t/complex-integration/99544 "2023-05-29T07:57:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Fourier](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/fourier/32/38176_2.png) [@Fourier](https://discourse.julialang.org/u/Fourier)\
**Post date:** [May 29, 2023, 7:57am UTC](https://discourse.julialang.org/t/complex-integration/99544/1 "2023-05-29T07:57:21Z")

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Is there a package that has support for complex numbers when integrating?  
I quite liked monte carlo integration, because the integrals I am evaluating are 3 dimensional and the error of MC is dimension independant. Also they have a peak so importance sampling seems nice.  
However I realized that the integrators dont work with complex numbers, what can I do?

For clarification, I am integrating along the real number line.

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**Author:** ![giordano](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/giordano/32/2166_2.png) [@giordano](https://discourse.julialang.org/u/giordano)\
**Post date:** [May 29, 2023, 8:05am UTC](https://discourse.julialang.org/t/complex-integration/99544/2 "2023-05-29T08:05:27Z")

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[https://juliamath.github.io/QuadGK.jl/stable/quadgk-examples/#Complex-and-vector-valued-integrands](https://juliamath.github.io/QuadGK.jl/stable/quadgk-examples/#Complex-and-vector-valued-integrands)