but this problem is not in 2013 and downer versions
answer:y = round(x,3)
why roundn not work?
@arsenic 陈: roundn is a toolbox function. Cody only supports functions in basic MATLAB.
Project Euler: Problem 2, Sum of even Fibonacci
Create a square matrix of multiples
Beginner's Problem - Squaring
Matlab Basics - Rounding III
Matlab Basics - Pick out parts of a vector
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