diff options
Diffstat (limited to 'ext/bigdecimal/bigdecimal_en.html')
| -rw-r--r-- | ext/bigdecimal/bigdecimal_en.html | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/ext/bigdecimal/bigdecimal_en.html b/ext/bigdecimal/bigdecimal_en.html index a8ced21e01..c4ed6b4c01 100644 --- a/ext/bigdecimal/bigdecimal_en.html +++ b/ext/bigdecimal/bigdecimal_en.html @@ -148,8 +148,8 @@ 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 previous value set.<BR> -nil is returned if any argument is wrong.<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 & BigDecimal::EXCEPTION_NaN !=0 means EXCEPTION_NaN is set to on. <P> @@ -169,8 +169,7 @@ where flag must be one of: <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,nil is returned if any argument is not an integer. -Bad specification is ignored.<BR> +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 mthods for each instance instead. </BLOCKQUOTE> @@ -359,10 +358,27 @@ If a is Infinity or NaN,then i becomes to nil. </BLOCKQUOTE> <LI><B>to_s[(n)]</B></LI><BLOCKQUOTE> -converts to string(results look like "0.xxxxxEn").<BR> -s = a.to_s<BR> -If n is given,then a space is inserted after every n digits for readability.<BR> -s = a.to_s(n) +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 an string representing a positive integer number. +<CODE><PRE> +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> @@ -371,8 +387,8 @@ n = a.exponent <BR> means a = 0.xxxxxxx*10**n. </BLOCKQUOTE> -<LI><B>prec</B></LI><BLOCKQUOTE> -n,m = a.prec <BR> +<LI><B>precs</B></LI><BLOCKQUOTE> +n,m = a.precs <BR> prec returns number of significant digits (n) and maximum number of significant digits (m) of a. </BLOCKQUOTE> |