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Diffstat (limited to 'Doc/library/math.rst')
| -rw-r--r-- | Doc/library/math.rst | 9 |
1 files changed, 6 insertions, 3 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) |