Here is a list of all topics with brief descriptions:

Chunked array	Chunked array container
Adaptors of STL-like containers
Evaluation	Evaluation functions
Basic functions
Exponential functions
Power functions
Trigonometric function
Hyperbolic functions
Error and gamma functions
Nearest integer floating point operations
Classification functions
reducing functions
accumulating functions
nan functions
Arithmetic operators
Logical operators
Bitwise operators
Comparison operators
Casting operators
Support functions to get/check a shape array.
Support functions swich between array indices and flat indices
Complex numbers	Defined in `xtensor/xcomplex.hpp`
Digitize helpers	Helpers for assigning values to histogram bins
Histogram functions	Helpers for computing histograms and histogram bin edges
Array manipulation
Searchsorted helpers	Helpers for locating insertion indices in sorted arrays
Sorting functions.	Because sorting functions need to access the tensor data repeatedly, they evaluate their input and may allocate temporaries
Functor view	Chunked array container