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## Main Question or Discussion Point

About 10 years ago I worked on a project where I took a mater distribution and numerically solved for spatial curvature. Can this be done in the opposite direction?

Can anybody point me to a resource that would allow me to calculate matter distributions when the metric is specified?

What are the tools used in numerical relativity today?

Can anybody point me to a resource that would allow me to calculate matter distributions when the metric is specified?

What are the tools used in numerical relativity today?