# Radial orbitals

`AtomicStructure.RadialOrbital`

— Type`RadialOrbital`

A radial orbital is represented using basis coupled with a vector of expansion coefficients with respect to that basis; the basis implemented as an `AbstractQuasimatrix`

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`AtomicStructure.RadialOrbitals`

— Type`RadialOrbitals`

A collection of radial orbitals is instead represented using a matrix of such expansion coefficients, where each matrix column corresponds to a single radial orbital.