diff options
| -rw-r--r-- | Doc/library/math.rst | 9 | ||||
| -rw-r--r-- | Misc/ACKS | 1 | ||||
| -rw-r--r-- | Modules/mathmodule.c | 9 |
3 files changed, 13 insertions, 6 deletions
diff --git a/Doc/library/math.rst b/Doc/library/math.rst index bfce41a..be953cf 100644 --- a/Doc/library/math.rst +++ b/Doc/library/math.rst @@ -366,17 +366,20 @@ Trigonometric functions .. 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) @@ -251,6 +251,7 @@ Jp Calderone Arnaud Calmettes Daniel Calvelo Tony Campbell +Giovanni Cappellotto Brett Cannon Tristan Carel Mike Carlton diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c index 552cb78..92c40b3 100644 --- a/Modules/mathmodule.c +++ b/Modules/mathmodule.c @@ -1072,19 +1072,22 @@ math_2(PyObject *const *args, Py_ssize_t nargs, 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" |