
{{alias}}( v )
    Returns the standard deviation of a Student's t distribution.

    If provided `NaN` as any argument, the function returns `NaN`.

    If provided `1 < v <= 2`, the function returns positive infinity.

    If provided `v <= 1`, the function returns `NaN`.

    Parameters
    ----------
    v: number
        Degrees of freedom.

    Returns
    -------
    out: number
        Standard deviation.

    Examples
    --------
    > var v = {{alias}}( 9.0 )
    ~1.134
    > v = {{alias}}( 4.5 )
    ~1.342

    See Also
    --------

