xtensor provides the following rounding operations for xexpressions:
Defined in xtensor/xmath.hpp
.. doxygenfunction:: ceil(E&&) :project: xtensor
.. doxygenfunction:: floor(E&&) :project: xtensor
.. doxygenfunction:: trunc(E&&) :project: xtensor
.. doxygenfunction:: round(E&&) :project: xtensor
.. doxygenfunction:: nearbyint(E&&) :project: xtensor
.. doxygenfunction:: rint(E&&) :project: xtensor