# Documentation * [Algebra](algebra.md): [context-based](contexts.md) operations on different primitives and structures. * [NDStructures](nd-structure.md) * [Linear algebra](linear.md): matrices, operations and linear equations solving. To be moved to separate module. Currently, supports basic API and multiple library back-ends. * [Histograms](histograms.md): multidimensional histogram calculation and operations. * [Expressions](expressions.md) * Commons math integration