xtensor provides the following trigonometric functions for xexpressions and scalars:
Defined in xtensor/core/xmath.hpp
.. doxygenfunction:: sin(E&&)
.. doxygenfunction:: cos(E&&)
.. doxygenfunction:: tan(E&&)
.. doxygenfunction:: asin(E&&)
.. doxygenfunction:: acos(E&&)
.. doxygenfunction:: atan(E&&)
.. doxygenfunction:: atan2(E1&&, E2&&)