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.
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Doubling elements in a vector
Multiples of a Number in a Given Range
Matlab Basics - Rounding I
Matlab Basics - Absolute Value
Matlab Basics - Logical Tests I
Matlab Basics II - Log and natural log
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