python
diff --git a/‎library/cmath.po‎
Lines changed: 58 additions & 58 deletions b/‎library/cmath.po‎
Lines changed: 58 additions & 58 deletions
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Python 3.7\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-01-01 10:14+0900\n"
+"POT-Creation-Date: 2019-05-18 11:29+0900\n"
 "PO-Revision-Date: 2017-02-16 23:02+0000\n"
 "Last-Translator: Meng Du <[email protected]>, 2019\n"
 "Language-Team: Chinese (China) (https://www.transifex.com/python-doc/teams/5390/zh_CN/)\n"
@@ -29,16 +29,16 @@ msgstr ""
 
 #: ../../library/cmath.rst:9
 msgid ""
-"This module is always available.  It provides access to mathematical "
-"functions for complex numbers.  The functions in this module accept "
-"integers, floating-point numbers or complex numbers as arguments. They will "
-"also accept any Python object that has either a :meth:`__complex__` or a "
-":meth:`__float__` method: these methods are used to convert the object to a "
-"complex or floating-point number, respectively, and the function is then "
-"applied to the result of the conversion."
+"This module provides access to mathematical functions for complex numbers.  "
+"The functions in this module accept integers, floating-point numbers or "
+"complex numbers as arguments. They will also accept any Python object that "
+"has either a :meth:`__complex__` or a :meth:`__float__` method: these "
+"methods are used to convert the object to a complex or floating-point "
+"number, respectively, and the function is then applied to the result of the "
+"conversion."
 msgstr ""
 
-#: ../../library/cmath.rst:19
+#: ../../library/cmath.rst:18
 msgid ""
 "On platforms with hardware and system-level support for signed zeros, "
 "functions involving branch cuts are continuous on *both* sides of the branch"
@@ -47,18 +47,18 @@ msgid ""
 "specified below."
 msgstr ""
 
-#: ../../library/cmath.rst:27
+#: ../../library/cmath.rst:26
 msgid "Conversions to and from polar coordinates"
 msgstr ""
 
-#: ../../library/cmath.rst:29
+#: ../../library/cmath.rst:28
 msgid ""
 "A Python complex number ``z`` is stored internally using *rectangular* or "
 "*Cartesian* coordinates.  It is completely determined by its *real part* "
 "``z.real`` and its *imaginary part* ``z.imag``.  In other words::"
 msgstr ""
 
-#: ../../library/cmath.rst:36
+#: ../../library/cmath.rst:35
 msgid ""
 "*Polar coordinates* give an alternative way to represent a complex number.  "
 "In polar coordinates, a complex number *z* is defined by the modulus *r* and"
@@ -68,13 +68,13 @@ msgid ""
 "to *z*."
 msgstr ""
 
-#: ../../library/cmath.rst:43
+#: ../../library/cmath.rst:42
 msgid ""
 "The following functions can be used to convert from the native rectangular "
 "coordinates to polar coordinates and back."
 msgstr ""
 
-#: ../../library/cmath.rst:48
+#: ../../library/cmath.rst:47
 msgid ""
 "Return the phase of *x* (also known as the *argument* of *x*), as a float.  "
 "``phase(x)`` is equivalent to ``math.atan2(x.imag, x.real)``.  The result "
@@ -85,163 +85,163 @@ msgid ""
 "even when ``x.imag`` is zero::"
 msgstr ""
 
-#: ../../library/cmath.rst:65
+#: ../../library/cmath.rst:64
 msgid ""
 "The modulus (absolute value) of a complex number *x* can be computed using "
 "the built-in :func:`abs` function.  There is no separate :mod:`cmath` module"
 " function for this operation."
 msgstr ""
 
-#: ../../library/cmath.rst:72
+#: ../../library/cmath.rst:71
 msgid ""
 "Return the representation of *x* in polar coordinates.  Returns a pair ``(r,"
 " phi)`` where *r* is the modulus of *x* and phi is the phase of *x*.  "
 "``polar(x)`` is equivalent to ``(abs(x), phase(x))``."
 msgstr ""
 
-#: ../../library/cmath.rst:80
+#: ../../library/cmath.rst:79
 msgid ""
 "Return the complex number *x* with polar coordinates *r* and *phi*. "
 "Equivalent to ``r * (math.cos(phi) + math.sin(phi)*1j)``."
 msgstr ""
 
-#: ../../library/cmath.rst:85
+#: ../../library/cmath.rst:84
 msgid "Power and logarithmic functions"
 msgstr "幂函数与对数函数"
 
-#: ../../library/cmath.rst:89
+#: ../../library/cmath.rst:88
 msgid ""
 "Return *e* raised to the power *x*, where *e* is the base of natural "
 "logarithms."
 msgstr ""
 
-#: ../../library/cmath.rst:95
+#: ../../library/cmath.rst:94
 msgid ""
 "Returns the logarithm of *x* to the given *base*. If the *base* is not "
 "specified, returns the natural logarithm of *x*. There is one branch cut, "
 "from 0 along the negative real axis to -∞, continuous from above."
 msgstr ""
 
-#: ../../library/cmath.rst:102
+#: ../../library/cmath.rst:101
 msgid ""
 "Return the base-10 logarithm of *x*. This has the same branch cut as "
 ":func:`log`."
 msgstr ""
 
-#: ../../library/cmath.rst:108
+#: ../../library/cmath.rst:107
 msgid ""
 "Return the square root of *x*. This has the same branch cut as :func:`log`."
 msgstr ""
 
-#: ../../library/cmath.rst:112
+#: ../../library/cmath.rst:111
 msgid "Trigonometric functions"
 msgstr "三角函数"
 
-#: ../../library/cmath.rst:116
+#: ../../library/cmath.rst:115
 msgid ""
 "Return the arc cosine of *x*. There are two branch cuts: One extends right "
 "from 1 along the real axis to ∞, continuous from below. The other extends "
 "left from -1 along the real axis to -∞, continuous from above."
 msgstr ""
 
-#: ../../library/cmath.rst:123
+#: ../../library/cmath.rst:122
 msgid ""
 "Return the arc sine of *x*. This has the same branch cuts as :func:`acos`."
 msgstr ""
 
-#: ../../library/cmath.rst:128
+#: ../../library/cmath.rst:127
 msgid ""
 "Return the arc tangent of *x*. There are two branch cuts: One extends from "
 "``1j`` along the imaginary axis to ``∞j``, continuous from the right. The "
 "other extends from ``-1j`` along the imaginary axis to ``-∞j``, continuous "
 "from the left."
 msgstr ""
 
-#: ../../library/cmath.rst:136
+#: ../../library/cmath.rst:135
 msgid "Return the cosine of *x*."
 msgstr ""
 
-#: ../../library/cmath.rst:141
+#: ../../library/cmath.rst:140
 msgid "Return the sine of *x*."
 msgstr ""
 
-#: ../../library/cmath.rst:146
+#: ../../library/cmath.rst:145
 msgid "Return the tangent of *x*."
 msgstr ""
 
-#: ../../library/cmath.rst:150
+#: ../../library/cmath.rst:149
 msgid "Hyperbolic functions"
 msgstr "双曲函数"
 
-#: ../../library/cmath.rst:154
+#: ../../library/cmath.rst:153
 msgid ""
 "Return the inverse hyperbolic cosine of *x*. There is one branch cut, "
 "extending left from 1 along the real axis to -∞, continuous from above."
 msgstr ""
 
-#: ../../library/cmath.rst:160
+#: ../../library/cmath.rst:159
 msgid ""
 "Return the inverse hyperbolic sine of *x*. There are two branch cuts: One "
 "extends from ``1j`` along the imaginary axis to ``∞j``, continuous from the "
 "right.  The other extends from ``-1j`` along the imaginary axis to ``-∞j``, "
 "continuous from the left."
 msgstr ""
 
-#: ../../library/cmath.rst:168
+#: ../../library/cmath.rst:167
 msgid ""
 "Return the inverse hyperbolic tangent of *x*. There are two branch cuts: One"
 " extends from ``1`` along the real axis to ``∞``, continuous from below. The"
 " other extends from ``-1`` along the real axis to ``-∞``, continuous from "
 "above."
 msgstr ""
 
-#: ../../library/cmath.rst:176
+#: ../../library/cmath.rst:175
 msgid "Return the hyperbolic cosine of *x*."
 msgstr "返回 *x* 的双曲余弦值。"
 
-#: ../../library/cmath.rst:181
+#: ../../library/cmath.rst:180
 msgid "Return the hyperbolic sine of *x*."
 msgstr "返回 *x* 的双曲正弦值。"
 
-#: ../../library/cmath.rst:186
+#: ../../library/cmath.rst:185
 msgid "Return the hyperbolic tangent of *x*."
 msgstr "返回 *x* 的双曲正切值。"
 
-#: ../../library/cmath.rst:190
+#: ../../library/cmath.rst:189
 msgid "Classification functions"
 msgstr ""
 
-#: ../../library/cmath.rst:194
+#: ../../library/cmath.rst:193
 msgid ""
 "Return ``True`` if both the real and imaginary parts of *x* are finite, and "
 "``False`` otherwise."
 msgstr ""
 
-#: ../../library/cmath.rst:202
+#: ../../library/cmath.rst:201
 msgid ""
 "Return ``True`` if either the real or the imaginary part of *x* is an "
 "infinity, and ``False`` otherwise."
 msgstr ""
 
-#: ../../library/cmath.rst:208
+#: ../../library/cmath.rst:207
 msgid ""
 "Return ``True`` if either the real or the imaginary part of *x* is a NaN, "
 "and ``False`` otherwise."
 msgstr ""
 
-#: ../../library/cmath.rst:214
+#: ../../library/cmath.rst:213
 msgid ""
 "Return ``True`` if the values *a* and *b* are close to each other and "
 "``False`` otherwise."
 msgstr "若 *a* 和 *b* 的值比较接近则返回 ``True``，否则返回 ``False``。"
 
-#: ../../library/cmath.rst:217
+#: ../../library/cmath.rst:216
 msgid ""
 "Whether or not two values are considered close is determined according to "
 "given absolute and relative tolerances."
 msgstr "根据给定的绝对和相对容差确定两个值是否被认为是接近的。"
 
-#: ../../library/cmath.rst:220
+#: ../../library/cmath.rst:219
 msgid ""
 "*rel_tol* is the relative tolerance -- it is the maximum allowed difference "
 "between *a* and *b*, relative to the larger absolute value of *a* or *b*. "
@@ -253,20 +253,20 @@ msgstr ""
 "的较大绝对值。例如，要设置5％的容差，请传递 ``rel_tol=0.05`` 。默认容差为 ``1e-09``，确保两个值在大约9位十进制数字内相同。"
 " *rel_tol* 必须大于零。"
 
-#: ../../library/cmath.rst:226
+#: ../../library/cmath.rst:225
 msgid ""
 "*abs_tol* is the minimum absolute tolerance -- useful for comparisons near "
 "zero. *abs_tol* must be at least zero."
 msgstr "*abs_tol* 是最小绝对容差 —— 对于接近零的比较很有用。 *abs_tol* 必须至少为零。"
 
-#: ../../library/cmath.rst:229
+#: ../../library/cmath.rst:228
 msgid ""
 "If no errors occur, the result will be: ``abs(a-b) <= max(rel_tol * "
 "max(abs(a), abs(b)), abs_tol)``."
 msgstr ""
 "如果没有错误发生，结果将是： ``abs(a-b) <= max(rel_tol * max(abs(a), abs(b)), abs_tol)`` 。"
 
-#: ../../library/cmath.rst:232
+#: ../../library/cmath.rst:231
 msgid ""
 "The IEEE 754 special values of ``NaN``, ``inf``, and ``-inf`` will be "
 "handled according to IEEE rules.  Specifically, ``NaN`` is not considered "
@@ -276,49 +276,49 @@ msgstr ""
 "IEEE 754特殊值 ``NaN`` ， ``inf`` 和` `-inf`` 将根据IEEE规则处理。具体来说， ``NaN`` "
 "不被认为接近任何其他值，包括 ``NaN`` 。 ``inf`` 和 ``-inf`` 只被认为接近自己。"
 
-#: ../../library/cmath.rst:241
+#: ../../library/cmath.rst:240
 msgid ":pep:`485` -- A function for testing approximate equality"
 msgstr ":pep:`485` —— 用于测试近似相等的函数"
 
-#: ../../library/cmath.rst:245
+#: ../../library/cmath.rst:244
 msgid "Constants"
 msgstr "常数"
 
-#: ../../library/cmath.rst:249
+#: ../../library/cmath.rst:248
 msgid "The mathematical constant *π*, as a float."
 msgstr ""
 
-#: ../../library/cmath.rst:254
+#: ../../library/cmath.rst:253
 msgid "The mathematical constant *e*, as a float."
 msgstr ""
 
-#: ../../library/cmath.rst:259
+#: ../../library/cmath.rst:258
 msgid "The mathematical constant *τ*, as a float."
 msgstr ""
 
-#: ../../library/cmath.rst:266
+#: ../../library/cmath.rst:265
 msgid "Floating-point positive infinity. Equivalent to ``float('inf')``."
 msgstr ""
 
-#: ../../library/cmath.rst:273
+#: ../../library/cmath.rst:272
 msgid ""
 "Complex number with zero real part and positive infinity imaginary part. "
 "Equivalent to ``complex(0.0, float('inf'))``."
 msgstr ""
 
-#: ../../library/cmath.rst:281
+#: ../../library/cmath.rst:280
 msgid ""
 "A floating-point \"not a number\" (NaN) value.  Equivalent to "
 "``float('nan')``."
 msgstr ""
 
-#: ../../library/cmath.rst:289
+#: ../../library/cmath.rst:288
 msgid ""
 "Complex number with zero real part and NaN imaginary part. Equivalent to "
 "``complex(0.0, float('nan'))``."
 msgstr ""
 
-#: ../../library/cmath.rst:297
+#: ../../library/cmath.rst:296
 msgid ""
 "Note that the selection of functions is similar, but not identical, to that "
 "in module :mod:`math`.  The reason for having two modules is that some users"
@@ -330,7 +330,7 @@ msgid ""
 "imaginary part of zero)."
 msgstr ""
 
-#: ../../library/cmath.rst:305
+#: ../../library/cmath.rst:304
 msgid ""
 "A note on branch cuts: They are curves along which the given function fails "
 "to be continuous.  They are a necessary feature of many complex functions.  "
@@ -341,7 +341,7 @@ msgid ""
 " following:"
 msgstr ""
 
-#: ../../library/cmath.rst:315
+#: ../../library/cmath.rst:314
 msgid ""
 "Kahan, W:  Branch cuts for complex elementary functions; or, Much ado about "
 "nothing's sign bit.  In Iserles, A., and Powell, M. (eds.), The state of the"