.. _docs-meteoinfolab-numeric-funcitons-atan:


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atan
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.. currentmodule:: mipylib.numeric.minum

.. function:: atan(x)

    Trigonometric inverse tangent, element-wise.
    
    The inverse of tan, so that if ``y = tan(x)`` then ``x = atan(y)``.
    
    :param x: (*array_like*) Input values, ``atan`` is applied to each element of *x*.
    
    :returns: (*array_like*) Out has the same shape as *x*. Its real part is in
        ``[-pi/2, pi/2]`` .
    
    Examples::
    
        >>> atan([0, 1])
        array([0.0, 0.7853982])