# Trigonometric functions

xtensor provides the following trigonometric functions for xexpressions and scalars:

Defined in `xtensor/core/xmath.hpp`

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doxygenfunction: Cannot find function “sin” in doxygen xml output for project “xtensor” from directory: ../xml

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doxygenfunction: Cannot find function “cos” in doxygen xml output for project “xtensor” from directory: ../xml

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doxygenfunction: Cannot find function “tan” in doxygen xml output for project “xtensor” from directory: ../xml

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doxygenfunction: Cannot find function “asin” in doxygen xml output for project “xtensor” from directory: ../xml

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doxygenfunction: Cannot find function “acos” in doxygen xml output for project “xtensor” from directory: ../xml

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doxygenfunction: Cannot find function “atan” in doxygen xml output for project “xtensor” from directory: ../xml

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doxygenfunction: Cannot find function “atan2” in doxygen xml output for project “xtensor” from directory: ../xml