From 1eb81b7beaf571bdd534cfeec046b79b1d188714 Mon Sep 17 00:00:00 2001
From: Charles Harris <charlesr.harris@gmail.com>
Date: Fri, 21 Mar 2014 14:53:18 -0600
Subject: ENH, MAINT: Use an abstract base class for the polynomial classes.

The new base is ABCPolyBase and is intended to replace the use of the
polytemplate string.  In this way the need to compile the polynomial
classes on import is avoided.

Closes #634. Closes #3639.
---
 numpy/polynomial/chebyshev.py | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

(limited to 'numpy/polynomial/chebyshev.py')

diff --git a/numpy/polynomial/chebyshev.py b/numpy/polynomial/chebyshev.py
index 6a2394382..955f7bc94 100644
--- a/numpy/polynomial/chebyshev.py
+++ b/numpy/polynomial/chebyshev.py
@@ -87,11 +87,12 @@ References
 """
 from __future__ import division, absolute_import, print_function
 
+import warnings
 import numpy as np
 import numpy.linalg as la
+
 from . import polyutils as pu
-import warnings
-from .polytemplate import polytemplate
+from ._polybase import ABCPolyBase
 
 __all__ = ['chebzero', 'chebone', 'chebx', 'chebdomain', 'chebline',
     'chebadd', 'chebsub', 'chebmulx', 'chebmul', 'chebdiv', 'chebpow',
@@ -2012,4 +2013,22 @@ def chebpts2(npts):
 # Chebyshev series class
 #
 
-exec(polytemplate.substitute(name='Chebyshev', nick='cheb', domain='[-1,1]'))
+class Chebyshev(ABCPolyBase):
+    # Virtual Functions
+    _add = staticmethod(chebadd)
+    _sub = staticmethod(chebsub)
+    _mul = staticmethod(chebmul)
+    _div = staticmethod(chebdiv)
+    _pow = staticmethod(chebpow)
+    _val = staticmethod(chebval)
+    _int = staticmethod(chebint)
+    _der = staticmethod(chebder)
+    _fit = staticmethod(chebfit)
+    _line = staticmethod(chebline)
+    _roots = staticmethod(chebroots)
+    _fromroots = staticmethod(chebfromroots)
+
+    # Virtual properties
+    nickname = 'cheb'
+    domain = np.array(chebdomain)
+    window = np.array(chebdomain)
-- 
cgit v1.2.1


From a2c96a6ad79efe81520e18078a6dee61c78113ef Mon Sep 17 00:00:00 2001
From: Charles Harris <charlesr.harris@gmail.com>
Date: Fri, 21 Mar 2014 18:22:45 -0600
Subject: DOC: Fixup documentation for new way of generating classes.

Move the class documentation to the place of definition in the
appropriate module. This allow for documenting the specific series kind
along with the series specific default domains and windows

Remove template placeholders from the ABCPolyBase class documention.

General fixup of documentation that rendered poorly.
---
 numpy/polynomial/chebyshev.py | 34 ++++++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)

(limited to 'numpy/polynomial/chebyshev.py')

diff --git a/numpy/polynomial/chebyshev.py b/numpy/polynomial/chebyshev.py
index 955f7bc94..ec3fde2f8 100644
--- a/numpy/polynomial/chebyshev.py
+++ b/numpy/polynomial/chebyshev.py
@@ -1647,10 +1647,15 @@ def chebfit(x, y, deg, rcond=None, full=False, w=None):
         the coefficients for the data in column k  of `y` are in column
         `k`.
 
-    [residuals, rank, singular_values, rcond] : present when `full` = True
-        Residuals of the least-squares fit, the effective rank of the
-        scaled Vandermonde matrix and its singular values, and the
-        specified value of `rcond`. For more details, see `linalg.lstsq`.
+    [residuals, rank, singular_values, rcond] : list
+        These values are only returned if `full` = True
+
+        resid -- sum of squared residuals of the least squares fit
+        rank -- the numerical rank of the scaled Vandermonde matrix
+        sv -- singular values of the scaled Vandermonde matrix
+        rcond -- value of `rcond`.
+
+        For more details, see `linalg.lstsq`.
 
     Warns
     -----
@@ -2014,6 +2019,27 @@ def chebpts2(npts):
 #
 
 class Chebyshev(ABCPolyBase):
+    """A Chebyshev series class.
+
+    The Chebyshev class provides the standard Python numerical methods
+    '+', '-', '*', '//', '%', 'divmod', '**', and '()' as well as the
+    methods listed below.
+
+    Parameters
+    ----------
+    coef : array_like
+        Chebyshev coefficients in order of increasing degree, i.e.,
+        ``(1, 2, 3)`` gives ``1*T_0(x) + 2*T_1(x) + 3*T_2(x)``.
+    domain : (2,) array_like, optional
+        Domain to use. The interval ``[domain[0], domain[1]]`` is mapped
+        to the interval ``[window[0], window[1]]`` by shifting and scaling.
+        The default value is [-1, 1].
+    window : (2,) array_like, optional
+        Window, see `domain` for its use. The default value is [-1, 1].
+
+        .. versionadded:: 1.6.0
+
+    """
     # Virtual Functions
     _add = staticmethod(chebadd)
     _sub = staticmethod(chebsub)
-- 
cgit v1.2.1