cudf.Series.atan#
- Series.atan()#
Get Trigonometric inverse tangent, element-wise.
The inverse of tan so that, if y = x.tan(), then x = y.atan()
- Returns
- DataFrame/Series/Index
Result of the trigonometric operation.
Examples
>>> import cudf >>> ser = cudf.Series([-1, 0, 1, 0.32434, 0.5, -10]) >>> ser 0 -1.00000 1 0.00000 2 1.00000 3 0.32434 4 0.50000 5 -10.00000 dtype: float64 >>> ser.atan() 0 -0.785398 1 0.000000 2 0.785398 3 0.313635 4 0.463648 5 -1.471128 dtype: float64
atan operation on DataFrame:
>>> df = cudf.DataFrame({'first': [-1, -10, 0.5], ... 'second': [0.234, 0.3, 10]}) >>> df first second 0 -1.0 0.234 1 -10.0 0.300 2 0.5 10.000 >>> df.atan() first second 0 -0.785398 0.229864 1 -1.471128 0.291457 2 0.463648 1.471128
atan operation on Index:
>>> index = cudf.Index([-1, 0.4, 1, 0, 0.3]) >>> index Float64Index([-1.0, 0.4, 1.0, 0.0, 0.3], dtype='float64') >>> index.atan() Float64Index([-0.7853981633974483, 0.3805063771123649, 0.7853981633974483, 0.0, 0.2914567944778671], dtype='float64')