Julia早引きノート［10］関数 (2)応用編 - Qiita

◆型指定 # 引数はInt型(整数)を指定、返り値はFloat64(実数)を指定 function comsumption_tax(price::Int)::Float64 tax_rate = 1.08 return tax_rate * price end ◆型指定(一行表示) comsumption_tax(price::Int)::Float64 = tax_rate * price ◆可変長引数 ■例文1 function summation(v...) total = 0 for i in v total += v[i] end return total end ■例文2 function summation2(v::Int...) total = 0 for i = 1:length(v) total += v[i] end return total end ◆オプショナル引