diff options
Diffstat (limited to 'Doc/library/decimal.rst')
| -rw-r--r-- | Doc/library/decimal.rst | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/Doc/library/decimal.rst b/Doc/library/decimal.rst index 46fe643..73de358 100644 --- a/Doc/library/decimal.rst +++ b/Doc/library/decimal.rst @@ -328,7 +328,7 @@ Decimal objects infinity ::= 'Infinity' | 'Inf' nan ::= 'NaN' [digits] | 'sNaN' [digits] numeric-value ::= decimal-part [exponent-part] | infinity - numeric-string ::= [sign] numeric-value | [sign] nan + numeric-string ::= [sign] numeric-value | [sign] nan If *value* is a :class:`tuple`, it should have three components, a sign (:const:`0` for positive or :const:`1` for negative), a :class:`tuple` of @@ -970,7 +970,7 @@ In addition to the three supplied contexts, new contexts can be created with the * :const:`ROUND_HALF_EVEN` (to nearest with ties going to nearest even integer), * :const:`ROUND_HALF_UP` (to nearest with ties going away from zero), or * :const:`ROUND_UP` (away from zero). - * :const:`ROUND_05UP` (away from zero if last digit after rounding towards zero + * :const:`ROUND_05UP` (away from zero if last digit after rounding towards zero would have been 0 or 5; otherwise towards zero) The *traps* and *flags* fields list any signals to be set. Generally, new @@ -1313,7 +1313,7 @@ In addition to the three supplied contexts, new contexts can be created with the that would be obtained by computing ``(x**y) % modulo`` with unbounded precision, but is computed more efficiently. It is always exact. - .. versionchanged:: 2.6 + .. versionchanged:: 2.6 ``y`` may now be nonintegral in ``x**y``. Stricter requirements for the three-argument version. @@ -1455,7 +1455,7 @@ condition. sqrt(-x) and x > 0 0 ** 0 x ** (non-integer) - x ** Infinity + x ** Infinity .. class:: Overflow @@ -1558,7 +1558,7 @@ expanding the precision sufficiently to avoid loss of significance: Decimal('9.51111111') >>> u + (v + w) Decimal('9.51111111') - >>> + >>> >>> u, v, w = Decimal(20000), Decimal(-6), Decimal('6.0000003') >>> (u*v) + (u*w) Decimal('0.0060000') @@ -1697,7 +1697,7 @@ to work with the :class:`Decimal` class:: """ q = Decimal(10) ** -places # 2 places --> '0.01' - sign, digits, exp = value.quantize(q).as_tuple() + sign, digits, exp = value.quantize(q).as_tuple() result = [] digits = map(str, digits) build, next = result.append, digits.pop @@ -1754,12 +1754,12 @@ to work with the :class:`Decimal` class:: getcontext().prec += 2 i, lasts, s, fact, num = 0, 0, 1, 1, 1 while s != lasts: - lasts = s + lasts = s i += 1 fact *= i - num *= x - s += num / fact - getcontext().prec -= 2 + num *= x + s += num / fact + getcontext().prec -= 2 return +s def cos(x): @@ -1776,13 +1776,13 @@ to work with the :class:`Decimal` class:: getcontext().prec += 2 i, lasts, s, fact, num, sign = 0, 0, 1, 1, 1, 1 while s != lasts: - lasts = s + lasts = s i += 2 fact *= i * (i-1) num *= x * x sign *= -1 - s += num / fact * sign - getcontext().prec -= 2 + s += num / fact * sign + getcontext().prec -= 2 return +s def sin(x): @@ -1799,13 +1799,13 @@ to work with the :class:`Decimal` class:: getcontext().prec += 2 i, lasts, s, fact, num, sign = 1, 0, x, 1, x, 1 while s != lasts: - lasts = s + lasts = s i += 2 fact *= i * (i-1) num *= x * x sign *= -1 - s += num / fact * sign - getcontext().prec -= 2 + s += num / fact * sign + getcontext().prec -= 2 return +s @@ -1839,7 +1839,7 @@ the :const:`Inexact` trap is set, it is also useful for validation: >>> Decimal('3.214').quantize(TWOPLACES) Decimal('3.21') - >>> # Validate that a number does not exceed two places + >>> # Validate that a number does not exceed two places >>> Decimal('3.21').quantize(TWOPLACES, context=Context(traps=[Inexact])) Decimal('3.21') |