> For the complete documentation index, see [llms.txt](https://applied-physics.gitbook.io/warp-factory/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://applied-physics.gitbook.io/warp-factory/modules/metrics-module/metric-functions.md).

# Metric Functions

To assist users in building spacetimes several functions are provided for working in and outside of 3+1 formalism, these includes:

<table><thead><tr><th width="284" data-type="content-ref">Function</th><th>Description</th></tr></thead><tbody><tr><td><a href="/pages/X0u46D7RNszz3T0zhKG3">/pages/X0u46D7RNszz3T0zhKG3</a></td><td>Generates a flat spacetime as a 4x4 cell object.</td></tr><tr><td><a href="/pages/MWRgf3FrpG9Jrh1pZmAo">/pages/MWRgf3FrpG9Jrh1pZmAo</a></td><td>Generates the 3+1 components for flat spacetime..</td></tr><tr><td><a href="/pages/UwMYa7QCqYNjUc4VJZGk">/pages/UwMYa7QCqYNjUc4VJZGk</a></td><td>Generates the standard metric tensor from the 3+1 components.</td></tr><tr><td><a href="/pages/dh8MrrpCJbReSB7cNOoq">/pages/dh8MrrpCJbReSB7cNOoq</a></td><td>Generates the 3+1 components from a standard metric tensor.</td></tr></tbody></table>

Supporting these main functions are several auxiliary functions that can be found within the utils folder in `Metrics > utils`.