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MAINT: Change complex parameter to boolean in Y_() #5209

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merged 1 commit into from Oct 10, 2015
Merged

MAINT: Change complex parameter to boolean in Y_() #5209

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30 changes: 15 additions & 15 deletions scipy/special/basic.py
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Expand Up @@ -311,7 +311,7 @@ def ynp_zeros(n, nt):
return jnyn_zeros(n, nt)[3]


def y0_zeros(nt, complex=0):
def y0_zeros(nt, complex=False):
"""Compute nt zeros of Bessel function Y0(z), and derivative at each zero.

The derivatives are given by Y0'(z0) = -Y1(z0) at each zero z0.
Expand All @@ -320,9 +320,9 @@ def y0_zeros(nt, complex=0):
----------
nt : int
Number of zeros to return
complex : int, default 0
Set to 0 to return only the real zeros; set to 1 to return only the
complex zeros with negative real part and positive imaginary part.
complex : bool, default False
Set to False to return only the real zeros; set to True to return only
the complex zeros with negative real part and positive imaginary part.
Note that the complex conjugates of the latter are also zeros of the
function, but are not returned by this routine.

Expand All @@ -343,11 +343,11 @@ def y0_zeros(nt, complex=0):
if not isscalar(nt) or (floor(nt) != nt) or (nt <= 0):
raise ValueError("Arguments must be scalar positive integer.")
kf = 0
kc = (complex != 1)
kc = not complex
return specfun.cyzo(nt, kf, kc)


def y1_zeros(nt, complex=0):
def y1_zeros(nt, complex=False):
"""Compute nt zeros of Bessel function Y1(z), and derivative at each zero.

The derivatives are given by Y1'(z1) = Y0(z1) at each zero z1.
Expand All @@ -356,9 +356,9 @@ def y1_zeros(nt, complex=0):
----------
nt : int
Number of zeros to return
complex : int, default 0
Set to 0 to return only the real zeros; set to 1 to return only the
complex zeros with negative real part and positive imaginary part.
complex : bool, default False
Set to False to return only the real zeros; set to True to return only
the complex zeros with negative real part and positive imaginary part.
Note that the complex conjugates of the latter are also zeros of the
function, but are not returned by this routine.

Expand All @@ -379,11 +379,11 @@ def y1_zeros(nt, complex=0):
if not isscalar(nt) or (floor(nt) != nt) or (nt <= 0):
raise ValueError("Arguments must be scalar positive integer.")
kf = 1
kc = (complex != 1)
kc = not complex
return specfun.cyzo(nt, kf, kc)


def y1p_zeros(nt, complex=0):
def y1p_zeros(nt, complex=False):
"""Compute nt zeros of Bessel derivative Y1'(z), and value at each zero.

The values are given by Y1(z1) at each z1 where Y1'(z1)=0.
Expand All @@ -392,9 +392,9 @@ def y1p_zeros(nt, complex=0):
----------
nt : int
Number of zeros to return
complex : int, default 0
Set to 0 to return only the real zeros; set to 1 to return only the
complex zeros with negative real part and positive imaginary part.
complex : bool, default False
Set to False to return only the real zeros; set to True to return only
the complex zeros with negative real part and positive imaginary part.
Note that the complex conjugates of the latter are also zeros of the
function, but are not returned by this routine.

Expand All @@ -415,7 +415,7 @@ def y1p_zeros(nt, complex=0):
if not isscalar(nt) or (floor(nt) != nt) or (nt <= 0):
raise ValueError("Arguments must be scalar positive integer.")
kf = 2
kc = (complex != 1)
kc = not complex
return specfun.cyzo(nt, kf, kc)


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