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U:RDoc::AnyMethod[iI"sum:ETI"Array#sum;TF:publico:RDoc::Markup::Document:@parts[o:RDoc::Markup::Paragraph;	[I""Returns the sum of elements. ;TI"?For example, [e1, e2, e3].sum returns init + e1 + e2 + e3.;To:RDoc::Markup::BlankLine�o;
;	[I"?If a block is given, the block is applied to each element ;TI"before addition.;T@o;
;	[I"4If ary is empty, it returns init.;T@o:RDoc::Markup::Verbatim;	[I".[].sum #=> 0
;TI"0[].sum(0.0) #=> 0.0
;TI".[1, 2, 3].sum #=> 6
;TI"0[3, 5.5].sum #=> 8.5
;TI"2[2.5, 3.0].sum(0.0) {|e| e * e } #=> 15.25
;TI"6[Object.new].sum #=> TypeError
;T:@format0o;
;	[I"HThe (arithmetic) mean value of an array can be obtained as follows.;T@o;;	[I"&mean = ary.sum(0.0) / ary.length
;T;
0o;
;	[I"8This method can be used for non-numeric objects by ;TI"#explicit init argument.;T@o;;	[I"2["a", "b", "c"].sum("") #=> "abc"
;TI"8[[1], [[2]], [3]].sum([]) #=> [1, [2], 3]
;T;
0o;
;	[I"HHowever, Array#join and Array#flatten is faster than Array#sum for ;TI"*array of strings and array of arrays.;T@o;;	[I"2["a", "b", "c"].join #=> "abc"
;TI"8[[1], [[2]], [3]].flatten(1) #=> [1, [2], 3]
;T;
0o;
;	[I"IArray#sum method may not respect method redefinition of "+" methods ;TI"such as Integer#+.;T:
@fileI"array.c;T:0@omit_headings_from_table_of_contents_below0I"_ary.sum(init=0) -> number
ary.sum(init=0) {|e| expr } -> number
;T0[�I"(*args);T@9FI"
Array;TcRDoc::NormalClass00