# Complex solver despite real input

**URL:** <https://community.freefem.org/t/complex-solver-despite-real-input/3956>\
**Category:** General Discussion\
**Created:** [June 2, 2025, 2:23pm UTC](https://community.freefem.org/t/complex-solver-despite-real-input/3956 "2025-06-02T14:23:05Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![wurschtbrotwilli](https://avatars.discourse-cdn.com/v4/letter/w/6f9a4e/32.png) [@wurschtbrotwilli](https://community.freefem.org/u/wurschtbrotwilli)\
**Post date:** [June 26, 2025, 4:04am UTC](https://community.freefem.org/t/complex-solver-despite-real-input/3956/5 "2025-06-26T04:04:28Z")

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I described my problem in [this post](https://community.freefem.org/t/time-harmonic-birefringent-maxwell-for-3d-anisotropic-medium-with-phase-shifting-light/3939)  
already and it appeared to be too difficult or off-topic for most, so I didnt get a reply. Thus, I reduced my question and formulated it more generally. In the betweentime i tried to approach my problem differently and do not want to use the unknown and test function as complex since the real valued components are of interest and the imaginary argument is equal for all spatial components.

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