--- title: Studies status: partial doc_kind: reference audience: user owner: fullmag-public-docs --- (public-docs-python-api-studies-root)= # Studies A study defines what to compute: time evolution, relaxation, hysteresis, eigenmodes, or frequency response. Stages are authored in order and executed by the runtime; the pages here document each study type's stage and its results. ```{toctree} :maxdepth: 1 time-evolution relaxation hysteresis eigenmodes frequency-response ``` ## Control Room crosswalk Use `Model Explorer -> Stages -> Add stage` for the study types supported by `StudyStageDraftEditor`. Fields absent from the corresponding stage editor are `TODO: frontend support`; child pages must identify them explicitly. See {doc}`/frontend/capability-register`. ## API and source scope This is a navigation page without a standalone study constructor. Terminal pages own the exact Python examples, equations or applicability boundary, validation, bibliography, and source-code indexes. ## Source-code index This is a navigation page and introduces no standalone implementation symbol. The exact source-code index is maintained by the selected terminal page.