[section:concepts Concepts]

Users can extend the library with various new types whose concepts are defined here.

[include concepts/Axis.qbk]
[include concepts/DiscreteAxis.qbk]
[include concepts/IntervalAxis.qbk]
[include concepts/Transform.qbk]
[include concepts/Storage.qbk]
[include concepts/Accumulator.qbk]

[endsect]