Ruby

[ruby/bigdecimal] Enhanced RDoc for BigDecimal (https://github.com/ruby/bigdecimal/pull/209)

• Enhanced RDoc for BigDecimal

• Update ext/bigdecimal/bigdecimal.c

Remove the instance number of Float::DIG.

• Update ext/bigdecimal/bigdecimal.c

Add BigDecimal call-seq without ndigits.

• Update ext/bigdecimal/bigdecimal.c

Replace the word sum with value or result in the description of BigDecimal().

• Update ext/bigdecimal/bigdecimal.c

Remove the instance value of Float::DIG.

• Update ext/bigdecimal/bigdecimal.c

Fix mis-description of precision

• Update ext/bigdecimal/bigdecimal.c

Fix the description of precision determination

• Update ext/bigdecimal/bigdecimal.c

Add the description of the precision in the Rational case.

https://github.com/ruby/bigdecimal/commit/acabb132a4

Co-authored-by: Kenta Murata [email protected]