.. function:: acos(x)
- Return the arc cosine of *x*, in radians.
+ Return the arc cosine of *x*, in radians. The result is between ``0`` and
+ ``pi``.
.. function:: asin(x)
- Return the arc sine of *x*, in radians.
+ Return the arc sine of *x*, in radians. The result is between ``-pi/2`` and
+ ``pi/2``.
.. function:: atan(x)
- Return the arc tangent of *x*, in radians.
+ Return the arc tangent of *x*, in radians. The result is between ``-pi/2`` and
+ ``pi/2``.
.. function:: atan2(y, x)
FUNC1(acos, acos, 0,
"acos($module, x, /)\n--\n\n"
- "Return the arc cosine (measured in radians) of x.")
+ "Return the arc cosine (measured in radians) of x.\n\n"
+ "The result is between 0 and pi.")
FUNC1(acosh, m_acosh, 0,
"acosh($module, x, /)\n--\n\n"
"Return the inverse hyperbolic cosine of x.")
FUNC1(asin, asin, 0,
"asin($module, x, /)\n--\n\n"
- "Return the arc sine (measured in radians) of x.")
+ "Return the arc sine (measured in radians) of x.\n\n"
+ "The result is between -pi/2 and pi/2.")
FUNC1(asinh, m_asinh, 0,
"asinh($module, x, /)\n--\n\n"
"Return the inverse hyperbolic sine of x.")
FUNC1(atan, atan, 0,
"atan($module, x, /)\n--\n\n"
- "Return the arc tangent (measured in radians) of x.")
+ "Return the arc tangent (measured in radians) of x.\n\n"
+ "The result is between -pi/2 and pi/2.")
FUNC2(atan2, m_atan2,
"atan2($module, y, x, /)\n--\n\n"
"Return the arc tangent (measured in radians) of y/x.\n\n"