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ruby-changes:21299

From: mrkn <ko1@a...>
Date: Wed, 28 Sep 2011 04:07:07 +0900 (JST)
Subject: [ruby-changes:21299] mrkn:r33348 (trunk): * ext/bigdecimal/bigdecimal_en.html: removed because this file isn't

mrkn	2011-09-28 04:06:52 +0900 (Wed, 28 Sep 2011)

  New Revision: 33348

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=33348

  Log:
    * ext/bigdecimal/bigdecimal_en.html: removed because this file isn't
      maintained now.
    * ext/bigdecimal/bigdecimal_ja.html: ditto.

  Removed files:
    trunk/ext/bigdecimal/bigdecimal_en.html
    trunk/ext/bigdecimal/bigdecimal_ja.html
  Modified files:
    trunk/ChangeLog

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 33347)
+++ ChangeLog	(revision 33348)
@@ -1,3 +1,10 @@
+Tue Sep 28 04:05:00 2011  Kenta Murata  <mrkn@m...>
+
+	* ext/bigdecimal/bigdecimal_en.html: removed because this file isn't
+	  maintained now.
+
+	* ext/bigdecimal/bigdecimal_ja.html: ditto.
+
 Tue Sep 27 09:55:40 2011  KOSAKI Motohiro  <kosaki.motohiro@g...>
 
 	* thread_pthread.c: make native_fd_select().
Index: ext/bigdecimal/bigdecimal_en.html
===================================================================
--- ext/bigdecimal/bigdecimal_en.html	(revision 33347)
+++ ext/bigdecimal/bigdecimal_en.html	(revision 33348)
@@ -1,792 +0,0 @@
-<HTML>
-<HEAD>
-<META HTTP-EQUIV="Content-Type" CONTENT="text/html">
-<style type="text/css"><!--
-body {  color: #3f0f0f;  background: #fefeff;  margin-left: 2em; margin-right: 2em;}
-h1 {  color: #ffffff;  background-color: #3939AD;  border-color: #FF00FF;  width: 100%;  border-style: solid;
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-  font-weight: bold;  font-size: 110%;
-}
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-dt {  margin-top: 0.2em;}
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-pre
-{    BACKGROUND-COLOR: #d0d0d0;    BORDER-BOTTOM: medium none;    BORDER-LEFT: medium none;
-    BORDER-RIGHT: medium none;    BORDER-TOP: medium none;    LINE-HEIGHT: 100%;    MARGIN: 12px 12px 12px 12px;
-    PADDING-BOTTOM: 12px;    PADDING-LEFT: 12px;    PADDING-RIGHT: 12px;    PADDING-TOP: 12px;
-    WHITE-SPACE: pre;    WIDTH: 100%
-}
---></style>
-
-<TITLE>BigDecimal:An extension library for Ruby</TITLE>
-</HEAD>
-<BODY BGCOLOR=#FFFFE0>
-<H1>BigDecimal(Variable Precision Floating Library for Ruby)</H1>
-<DIV align="right"><A HREF="./bigdecimal_ja.html">Japanese</A></DIV><BR>
-BigDecimal is an extension library for the Ruby interpreter.
-Using BigDecimal class, you can obtain any number of significant digits in computation.
-For the details about Ruby see:<BR>
-<UL>
-<LI><A HREF="http://www.ruby-lang.org/en/">http://www.ruby-lang.org/en/</A>:Official Ruby page(English).</LI>
-<LI><A HREF="http://kahori.com/ruby/ring/">http://kahori.com/ruby/ring/</A>:Mutually linked pages relating to Ruby(Japanese).
-</LI>
-</UL>
-NOTE:<BR>
- This software is provided "AS IS" and without any express or
- implied warranties,including,without limitation,the implied
- warranties of merchantability and fitness for a particular
- purpose. For the details,see COPYING and README included in this
- distribution.
-<BR>
-<hr>
-
-<H2>Contents</H2>
-<UL>
-<LI><A HREF="#INTRO">Introduction</LI>
-<LI><A HREF="#SPEC">Usage and methods</A></LI>
-<LI><A HREF="#UNDEF">Infinity,NaN,Zero</A></LI>
-<LI><A HREF="#STRUCT">Internal structure</A></LI>
-<LI><A HREF="#BASE">Binary or decimal number representation</A></LI>
-<LI><A HREF="#PREC">Resulting number of significant digits</A></LI>
-</UL>
-<HR>
-
-<A NAME="#INTRO">
-<H2>Introduction</H2>
-Ruby already has builtin (variable length integer number) class Bignum. Using Bignum class,you can obtain
- any integer value in magnitude. But, variable length decimal number class is not yet built in.
-This is why I made variable length floating class BigDecimal.
-Feel free to send any comments or bug reports to me.
-<A HREF="mailto:shigeo@t...">shigeo@t...</A>
-I will try(but can't promise) to fix bugs reported.
-<hr>
-<H2>Installation</H2>
-The Ruby latest version can be downloaded from <A HREF="http://www.ruby-lang.org/en/">Official Ruby page</A>.
-Once decompress the downloaded Ruby archive,follow the normal installation procedures according to the
-documents included.
-
-<A NAME="#SPEC">
-<H2>Usage and methods</H2>
-Suppose you already know Ruby programming,
-to create BigDecimal objects,the program would like:<BR>
-
-<CODE><PRE>
-   require 'bigdecimal'
-   a=BigDecimal::new("0.123456789123456789")
-   b=BigDecimal("123456.78912345678",40)
-   c=a+b
-</PRE></CODE>
-
-<H3>List of methods</H3>
-In 32 bits integer system,every 4 digits(in decimal) are computed simultaneously.
-This means the number of significant digits in BigDecimal is always a multiple of 4.
-<P>
-Some more methods are available in Ruby code (not C code).
-Functions such as sin,cos ...,are in math.rb in bigdecimal directory.
-To use them,require math.rb as:
-<CODE><PRE>
-require "bigdecimal/math.rb"
-</PRE></CODE>
-For details,see the math.rb code and comments.
-Other utility methods are in util.rb.
-To use util.rb, require it as:
-<CODE><PRE>
-require "bigdecimal/util.rb"
-</PRE></CODE>
-For details,see the util.rb code.
-
-<H4><U>Class methods</U></H4>
-<UL>
-<LI><B>new</B></LI><BLOCKQUOTE>
-"new" method creates a new BigDecimal object.<BR>
-a=BigDecimal::new(s[,n]) or<BR>
-a=BigDecimal(s[,n]) or<BR>
-where:<BR>
-s: Initial value string. Spaces will be ignored. Any unrecognizable character for
-representing initial value terminates the string.<BR>
-n: Maximum number of significant digits of a. n must be a Fixnum object.
-If n is omitted or is equal to 0,then the maximum number of significant digits of a is determined from the length of s.
-Actual number of digits handled in computations are usually greater than n.<BR>
-n is useful when performing divisions like
-<CODE><PRE>
-BigDecimal("1")    / BigDecimal("3")    # => 0.3333333333 33E0
-BigDecimal("1",10) / BigDecimal("3",10) # => 0.3333333333 3333333333 33333333E0
-</PRE></CODE>
-but the resulting digits obtained may differ in future version.
-</BLOCKQUOTE>
-
-<LI><B>mode</B></LI><BLOCKQUOTE>
-f = BigDecimal.mode(s[,v])<BR>
-mode method controls BigDecimal computation. If the second argument is not given or is nil,then the value
-of current setting is returned.
-Following usage are defined.<BR>
-<P><B>[EXCEPTION control]</B><P>
-Actions when computation results NaN or Infinity can be defined as follows.
-<P>
-<BLOCKQUOTE>
-f = BigDecimal::mode(BigDecimal::EXCEPTION_NaN,flag)<BR>
-f = BigDecimal::mode(BigDecimal::EXCEPTION_INFINITY,flag)<BR>
-f = BigDecimal::mode(BigDecimal::EXCEPTION_UNDERFLOW,flag)<BR>
-f = BigDecimal::mode(BigDecimal::EXCEPTION_OVERFLOW,flag)<BR>
-f = BigDecimal::mode(BigDecimal::EXCEPTION_ZERODIVIDE,flag)<BR>
-f = BigDecimal::mode(BigDecimal::EXCEPTION_ALL,flag)<BR>
-</BLOCKQUOTE>
-EXCEPTION_NaN controls the execution when computation results to NaN.<BR>
-EXCEPTION_INFINITY controls the execution when computation results to Infinity.<BR>
-EXCEPTION_UNDERFLOW controls the execution when computation underflows.<BR>
-EXCEPTION_OVERFLOW controls the execution when computation overflows.<BR>
-EXCEPTION_ZERODIVIDE controls the execution when zero-division occurs.<BR>
-EXCEPTION_ALL controls the execution when any defined exception occurs.<BR>
-If the flag is true,then the relating exception is thrown.<BR>
-No exception is thrown when the flag is false(default) and computation
-continues with the result:<BR>
-<BLOCKQUOTE>
-EXCEPTION_NaN results to NaN<BR>
-EXCEPTION_INFINITY results to +Infinity or -Infinity<BR>
-EXCEPTION_UNDERFLOW results to 0.<BR>
-EXCEPTION_OVERFLOW results to +Infinity or -Infinity<BR>
-EXCEPTION_ZERODIVIDE results to +Infinity or -Infinity<BR>
-</BLOCKQUOTE>
-EXCEPTION_INFINITY,EXCEPTION_OVERFLOW, and EXCEPTION_ZERODIVIDE are
- currently the same.<BR>
-The return value of mode method is the value set.<BR>
-If nil is specified for the second argument,then current setting is returned.<BR>
-Suppose the return value of the mode method is f,then
- f &amp; BigDecimal::EXCEPTION_NaN !=0 means EXCEPTION_NaN is set to on.
-<P>
-<B>[ROUND error control]</B><P>
-Rounding operation can be controlled as:
-<BLOCKQUOTE>
-f = BigDecimal::mode(BigDecimal::ROUND_MODE,flag)
-</BLOCKQUOTE>
-where flag must be one of:
-<TABLE>
-
-<TR><TD>ROUND_UP</TD><TD>round away from zero.</TD></TR>
-<TR><TD>ROUND_DOWN</TD><TD>round towards zero(truncate).</TD></TR>
-<TR><TD>ROUND_HALF_UP</TD><TD>round up if the digit &gt;= 5 otherwise truncated(default).</TD></TR>
-<TR><TD>ROUND_HALF_DOWN</TD><TD>round up if the digit &gt;= 6 otherwise truncated.</TD></TR>
-<TR><TD>ROUND_HALF_EVEN</TD><TD>round towards the even neighbor(Banker's rounding).
-<TR><TD>ROUND_CEILING</TD><TD>round towards positive infinity(ceil).</TD></TR>
-<TR><TD>ROUND_FLOOR</TD><TD>round towards negative infinity(floor).</TD></TR>
-</TABLE>
-New rounding mode is returned. If nil is specified for the second argument,then current setting is returned.<BR>
-The digit location for rounding operation can not be specified by this mode method,
-use truncate/round/ceil/floor/add/sub/mult/div methods for each instance instead.
-</BLOCKQUOTE>
-
-<LI><B>limit[(n)]</B></LI><BLOCKQUOTE>
-Limits the maximum digits that the newly created BigDecimal objects can hold never exceed n.
-This means the rounding operation specified by BigDecimal.mode is
-performed if necessary.
-limit returns the value before set if n is nil or is not specified.
-Zero,the default value,means no upper limit.<BR>
-The limit has no more priority than instance methods such as truncate,round,ceil,floor,add,sub,mult,and div. <BR>
-mf = BigDecimal::limit(n)<BR>
-</BLOCKQUOTE>
-
-<LI><B>double_fig</B></LI><BLOCKQUOTE>
-double_fig is a class method which returns the number of digits
-the Float class can have.
-<CODE><PRE>
-  p BigDecimal::double_fig  # ==> 20 (depends on the CPU etc.)
-</PRE></CODE>
-The equivalent C programs which calculates the value of
-double_fig is:
-<CODE><PRE>
- double v          = 1.0;
- int    double_fig = 0;
- while(v + 1.0 > 1.0) {
-    ++double_fig;
-    v /= 10;
- }
-</PRE></CODE>
-</BLOCKQUOTE>
-
-<LI><B>BASE</B></LI><BLOCKQUOTE>
-Base value used in the BigDecimal calculation.
-On 32 bits integer system,the value of BASE is 10000.<BR>
-b = BigDecimal::BASE<BR>
-</BLOCKQUOTE>
-</UL>
-
-<H4><U>Instance methods</U></H4>
-<UL>
-<LI><B>+</B></LI><BLOCKQUOTE>
-addition(c = a + b)<BR>
-For the resulting number of significant digits of c,see <A HREF="#PREC">Resulting number of significant digits</A>.
-
-</BLOCKQUOTE>
-<LI><B>-</B></LI><BLOCKQUOTE>
-subtraction (c = a - b) or negation (c = -a)<BR>
-For the resulting number of significant digits of c,see <A HREF="#PREC">Resulting number of significant digits</A>.
-
-</BLOCKQUOTE>
-<LI><B>*</B></LI><BLOCKQUOTE>
-multiplication(c = a * b)<BR>
-For the resulting number of significant digits of c,see <A HREF="#PREC">Resulting number of significant digits</A>.
-
-</BLOCKQUOTE>
-<LI><B>/</B></LI><BLOCKQUOTE>
-division(c = a / b)<BR>
-For the resulting number of significant digits of c,see <A HREF="#PREC">Resulting number of significant digits</A>.
-</BLOCKQUOTE>
-
-<LI><B>add(b,n)</B></LI><BLOCKQUOTE>
-c = a.add(b,n)<BR>
-c = a.add(b,n) performs c = a + b.<BR>
-If n is less than the actual significant digits of a + b,
-then c is rounded properly according to the BigDecimal.limit.<BR>
-If n is zero,then the result is the same as +'s.
-</BLOCKQUOTE>
-<LI><B>sub(b,n)</B></LI><BLOCKQUOTE>
-c = a.sub(b,n)<BR>
-c = a.sub(b,n) performs c = a - b.<BR>
-If n is less than the actual significant digits of a - b,
-then c is rounded properly according to the BigDecimal.limit.<BR>
-If n is zero,then the result is the same as -'s.
-
-</BLOCKQUOTE>
-<LI><B>mult(b,n)</B></LI><BLOCKQUOTE>
-c = a.mult(b,n)<BR>
-c = a.mult(b,n) performs c = a * b.<BR>
-If n is less than the actual significant digits of a * b,
-then c is rounded properly according to the BigDecimal.limit.<BR>
-If n is zero,then the result is the same as *'s.
-
-</BLOCKQUOTE>
-<LI><B>div(b[,n])</B></LI><BLOCKQUOTE>
-c = a.div(b,n)<BR>
-c = a.div(b,n) performs c = a / b.<BR>
-If n is less than the actual significant digits of a / b,
-then c is rounded properly according to the BigDecimal.limit.<BR>
-If n is zero,then the result is the same as /'s.
-If n is not given,then the result will be an integer(BigDecimal) like Float#div.
-</BLOCKQUOTE>
-
-<LI><B>fix</B></LI><BLOCKQUOTE>
-c = a.fix<BR>
-returns integer part of a.<BR>
-
-</BLOCKQUOTE>
-<LI><B>frac</B></LI><BLOCKQUOTE>
-c = a.frac<BR>
-returns fraction part of a.<BR>
-
-</BLOCKQUOTE>
-<LI><B>floor[(n)]</B></LI><BLOCKQUOTE>
-c = a.floor<BR>
-returns the maximum integer value (in BigDecimal) which is less than or equal to a.
-<CODE><PRE>
- c = BigDecimal("1.23456").floor  #  ==> 1
- c = BigDecimal("-1.23456").floor #  ==> -2
-</PRE></CODE>
-
-As shown in the following example,an optional integer argument (n) specifying the position
-of the target digit can be given.<BR>
-If n> 0,then the (n+1)th digit counted from the decimal point in fraction part is processed(resulting number of fraction part digits is less than or equal to n).<BR>
-If n<0,then the n-th digit counted from the decimal point in integer part is processed(at least n 0's are placed from the decimal point to left).
-<CODE><PRE>
- c = BigDecimal("1.23456").floor(4)   #  ==> 1.2345
- c = BigDecimal("15.23456").floor(-1) #  ==> 10.0
-</PRE></CODE>
-
-</BLOCKQUOTE>
-<LI><B>ceil[(n)]</B></LI><BLOCKQUOTE>
-c = a.ceil<BR>
-returns the minimum integer value (in BigDecimal) which is greater than or equal to a.
-<CODE><PRE>
- c = BigDecimal("1.23456").ceil  #  ==> 2
- c = BigDecimal("-1.23456").ceil #  ==> -1
-</PRE></CODE>
-
-As shown in the following example,an optional integer argument (n) specifying the position
-of the target digit can be given.<BR>
-If n>0,then the (n+1)th digit counted from the decimal point in fraction part is processed(resulting number of fraction part digits is less than or equal to n).<BR>
-If n<0,then the n-th digit counted from the decimal point in integer part is processed(at least n 0's are placed from the decimal point to left).
-<CODE><PRE>
- c = BigDecimal("1.23456").ceil(4)   # ==> 1.2346
- c = BigDecimal("15.23456").ceil(-1) # ==> 20.0
-</PRE></CODE>
-
-</BLOCKQUOTE>
-<LI><B>round[(n[,b])]</B></LI><BLOCKQUOTE>
-c = a.round<BR>
-round a to the nearest 1(default)D<BR>
-<CODE><PRE>
- c = BigDecimal("1.23456").round  #  ==> 1
- c = BigDecimal("-1.23456").round #  ==> -1
-</PRE></CODE>
-The rounding operation changes according to BigDecimal::mode(BigDecimal::ROUND_MODE,flag) if specified.
-
-As shown in the following example,an optional integer argument (n) specifying the position
-of the target digit can be given.<BR>
-If n>0,then the (n+1)th digit counted from the decimal point in fraction part is processed(resulting number of fraction  part digits is less than or equal to n).<BR>
-If n<0,then the n-th digit counted from the decimal point in integer part is processed(at least n 0's are placed from the decimal point to left).
-<CODE><PRE>
-c = BigDecimal::new("1.23456").round(4)   #  ==> 1.2346
-c = BigDecimal::new("15.23456").round(-1) #  ==> 20.0
-</PRE></CODE>
-
-Rounding operation can be specified by setting the second optional argument b with the valid ROUND_MODE.<BR>
-<CODE><PRE>
-c = BigDecimal::new("1.23456").round(3,BigDecimal::ROUND_HALF_EVEN)   #  ==> 1.234
-c = BigDecimal::new("1.23356").round(3,BigDecimal::ROUND_HALF_EVEN)   #  ==> 1.234
-</PRE></CODE>
-
-</BLOCKQUOTE>
-<LI><B>truncate[(n)]</B></LI><BLOCKQUOTE>
-c = a.truncate<BR>
-truncate a to the nearest 1D<BR>
-As shown in the following example,an optional integer argument (n) specifying the position
-of the target digit can be given.<BR>
-If n>0,then the (n+1)th digit counted from the decimal point in fraction part is processed(resulting number of fraction part digits is less than or equal to n).<BR>
-If n<0,then the n-th digit counted from the decimal point in integer part is processed(at least n 0's are placed from the decimal point to left).
-
-<CODE><PRE>
-c = BigDecimal::new("1.23456").truncate(4)   #  ==> 1.2345
-c = BigDecimal::new("15.23456").truncate(-1) #  ==> 10.0
-</PRE></CODE>
-</BLOCKQUOTE>
-<LI><B>abs</B></LI><BLOCKQUOTE>
-c = a.abs<BR>
-returns an absolute value of a.<BR>
-
-</BLOCKQUOTE>
-<LI><B>to_i</B></LI><BLOCKQUOTE>
-changes a to an integer.<BR>
-i = a.to_i<BR>
-i becomes to Fixnum or Bignum.
-If a is Infinity or NaN,then i becomes to nil.
-
-</BLOCKQUOTE>
-<LI><B>to_s[(n)]</B></LI><BLOCKQUOTE>
-converts to string(default results look like "0.xxxxxEn").
-<CODE><PRE>
-BigDecimal("1.23456").to_s  #  ==> "0.123456E1"
-</PRE></CODE>
-If n(>0) is given,then a space is inserted to each of two parts divided by the decimal point
-after every n digits for readability.
-<CODE><PRE>
-BigDecimal("0.1234567890123456789").to_s(10)   #  ==> "0.1234567890 123456789E0"
-</PRE></CODE>
-n can be a string representing a positive integer number.
-<CODE><PRE>
-BigDecimal("0.1234567890123456789").to_s("10") #  ==> "0.1234567890 123456789E0"
-</PRE></CODE>
-If the first character is '+'(or ' '),then '+'(or ' ') will be set before value string
-when the value is positive.
-<CODE><PRE>
-BigDecimal("0.1234567890123456789").to_s(" 10") #  ==> " 0.1234567890 123456789E0"
-BigDecimal("0.1234567890123456789").to_s("+10") #  ==> "+0.1234567890 123456789E0"
-BigDecimal("-0.1234567890123456789").to_s("10") #  ==> "-0.1234567890 123456789E0"
-</PRE></CODE>
-
-At the end of the string,'E'(or 'e') or 'F'(or 'f') can be specified to change
-number representation.
-<CODE><PRE>
-BigDecimal("1234567890.123456789").to_s("E")  #  ==> "0.1234567890123456789E10"
-BigDecimal("1234567890.123456789").to_s("F")  #  ==> "1234567890.123456789"
-BigDecimal("1234567890.123456789").to_s("5E") #  ==> "0.12345 67890 12345 6789E10"
-BigDecimal("1234567890.123456789").to_s("5F") #  ==> "12345 67890.12345 6789"
-</PRE></CODE>
-
-</BLOCKQUOTE>
-<LI><B>exponent</B></LI><BLOCKQUOTE>
-returns an integer holding exponent value of a.<BR>
-n = a.exponent <BR>
-means a = 0.xxxxxxx*10**n.
-</BLOCKQUOTE>
-
-<LI><B>precs</B></LI><BLOCKQUOTE>
-n,m = a.precs <BR>
-precs returns number of significant digits (n) and maximum number of
-significant digits (m) of a.
-</BLOCKQUOTE>
-
-<LI><B>to_f</B></LI><BLOCKQUOTE>
-Creates a new Float object having (nearly) the same value.
-Use split method if you want to convert by yourself.
-</BLOCKQUOTE>
-
-</BLOCKQUOTE>
-<LI><B>sign</B></LI><BLOCKQUOTE>
-n = a.sign <BR>
-returns positive value if a &gt; 0,negative value if a &lt; 0,
-otherwise zero if a == 0.<BR>
-where the value of n means that a is:<BR>
-n = BigDecimal::SIGN_NaN(0) : a is NaN<BR>
-n = BigDecimal::SIGN_POSITIVE_ZERO(1) : a is +0<BR>
-n = BigDecimal::SIGN_NEGATIVE_ZERO(-1) : a is -0<BR>
-n = BigDecimal::SIGN_POSITIVE_FINITE(2) : a is positive<BR>
-n = BigDecimal::SIGN_NEGATIVE_FINITE(-2) : a is negative<BR>
-n = BigDecimal::SIGN_POSITIVE_INFINITE(3) : a is +Infinity<BR>
-n = BigDecimal::SIGN_NEGATIVE_INFINITE(-3) : a is -Infinity<BR>
-The value in () is the actual value,see (<A HREF="#STRUCT">Internal structure</A>.<BR>
-
-</BLOCKQUOTE>
-<LI><B>nan?</B></LI><BLOCKQUOTE>
-a.nan? returns True when a is NaN.
-
-</BLOCKQUOTE>
-<LI><B>infinite?</B></LI><BLOCKQUOTE>
-a.infinite? returns 1 when a is Infinity, -1 when a is -Infinity, nil otherwise.
-
-</BLOCKQUOTE>
-<LI><B>finite?</B></LI><BLOCKQUOTE>
-a.finite? returns true when a is neither Infinity nor NaN.
-</BLOCKQUOTE>
-
-<LI><B>zero?</B></LI><BLOCKQUOTE>
-c = a.zero?<BR>
-returns true if a is equal to 0,otherwise returns false<BR>
-</BLOCKQUOTE>
-<LI><B>nonzero?</B></LI><BLOCKQUOTE>
-c = a.nonzero?<BR>
-returns nil if a is 0,otherwise returns a itself.<BR>
-</BLOCKQUOTE>
-
-<LI><B>split</B></LI><BLOCKQ (... truncated)

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