This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# BigDecimal.round (from ruby core) --- round(n, mode) --- Round to the nearest integer (by default), returning the result as a BigDecimal if n is specified, or as an Integer if it isn't. BigDecimal('3.14159').round #=> 3 BigDecimal('8.7').round #=> 9 BigDecimal('-9.9').round #=> -10 BigDecimal('3.14159').round(2).class.name #=> "BigDecimal" BigDecimal('3.14159').round.class.name #=> "Integer" If n is specified and positive, the fractional part of the result has no more than that many digits. If n is specified and negative, at least that many digits to the left of the decimal point will be 0 in the result, and return value will be an Integer. BigDecimal('3.14159').round(3) #=> 3.142 BigDecimal('13345.234').round(-2) #=> 13300 The value of the optional mode argument can be used to determine how rounding is performed; see BigDecimal.mode.
This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.