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.
Getting the indices from a vector
Create matrix of replicated elements
Is the input divisible by 3?
Swap two numbers
Matlab Basics - y as a function of x
Matlab Basics - Absolute Value
Matlab Basics - Create a row vector
Matlab Basics II - Extract last 3 elements of a vector
Matlab Basics II - Determine if an array has a 3rd dimension
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