def arcsin(x):
"""Compute the inverse sine of x.
For real x with abs(x)<=1, this returns the principal value.
If abs(x)>1, the complex arcsin() is computed.
Parameters
----------
x : array_like
Returns
-------
array_like
Examples
--------
(We set the printing precision so the example can be auto-tested)
>>> np.set_printoptions(precision=4)
>>> np.lib.scimath.arcsin(0)
0.0
>>> np.lib.scimath.arcsin([0,1])
array([ 0. , 1.5708])
"""
x = _fix_real_abs_gt_1(x)
return nx.arcsin(x)
def arcsin(x):
"""Compute the inverse sine of x.
For real x with abs(x)<=1, this returns the principal value.
If abs(x)>1, the complex arcsin() is computed.
Parameters
----------
x : array_like
Returns
-------
array_like
Examples
--------
(We set the printing precision so the example can be auto-tested)
>>> import numpy as np; np.set_printoptions(precision=4)
>>> arcsin(0)
0.0
>>> arcsin([0,1])
array([ 0. , 1.5708])
"""
x = _fix_real_abs_gt_1(x)
return nx.arcsin(x)
def arcsin(x):
"""
Compute the inverse sine of x.
Return the "principal value" (for a description of this, see
`numpy.arcsin`) of the inverse sine of `x`. For real `x` such that
`abs(x) <= 1`, this is a real number in the closed interval
:math:`[-\\pi/2, \\pi/2]`. Otherwise, the complex principle value is
returned.
Parameters
----------
x : array_like or scalar
The value(s) whose arcsin is (are) required.
Returns
-------
out : ndarray or scalar
The inverse sine(s) of the `x` value(s). If `x` was a scalar, so
is `out`, otherwise an array object is returned.
See Also
--------
numpy.arcsin
Notes
-----
For an arcsin() that returns ``NAN`` when real `x` is not in the
interval ``[-1,1]``, use `numpy.arcsin`.
Examples
--------
>>> np.set_printoptions(precision=4)
>>> np.emath.arcsin(0)
0.0
>>> np.emath.arcsin([0,1])
array([0. , 1.5708])
"""
x = _fix_real_abs_gt_1(x)
return nx.arcsin(x)
def arcsin(x):
"""
Compute the inverse sine of x.
Return the "principal value" (for a description of this, see
`numpy.arcsin`) of the inverse sine of `x`. For real `x` such that
`abs(x) <= 1`, this is a real number in the closed interval
:math:`[-\\pi/2, \\pi/2]`. Otherwise, the complex principle value is
returned.
Parameters
----------
x : array_like or scalar
The value(s) whose arcsin is (are) required.
Returns
-------
out : ndarray or scalar
The inverse sine(s) of the `x` value(s). If `x` was a scalar, so
is `out`, otherwise an array object is returned.
See Also
--------
numpy.arcsin
Notes
-----
For an arcsin() that returns ``NAN`` when real `x` is not in the
interval ``[-1,1]``, use `numpy.arcsin`.
Examples
--------
>>> np.set_printoptions(precision=4)
>>> np.emath.arcsin(0)
0.0
>>> np.emath.arcsin([0,1])
array([ 0. , 1.5708])
"""
x = _fix_real_abs_gt_1(x)
return nx.arcsin(x)
def arcsin(x):
x = _fix_real_abs_gt_1(x)
return nx.arcsin(x)
def arcsin(x):
x = _fix_real_abs_gt_1(x)
return nx.arcsin(x)