sym(1/3) bug?

Question

Andrew Dabrowski 2021-2-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/744582-sym-1-3-bug

评论： Adam Danz 2021-2-13

采纳的回答： Adam Danz

On https://www.mathworks.com/help/symbolic/create-symbolic-numbers-variables-and-expressions.html I see

But when I try running this I get

Is this a bug or am I doing something wrong?

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Answer 1

Adam Danz 2021-2-13

3
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/744582-sym-1-3-bug#answer_622902

编辑：Adam Danz 2021-2-13

在 MATLAB Online 中打开

Check your symbolic preferences.

sympref
ans = struct with fields:
           FourierParameters: [1×2 sym]
           HeavisideAtOrigin: [1×1 sym]
            AbbreviateOutput: 1
               TypesetOutput: 1
         FloatingPointOutput: 0
      PolynomialDisplayStyle: 'default'
    MatrixWithSquareBrackets: 0

If the FloatingPointOutput if true change it to false

sympref('FloatingPointOutput',true);

sym(1/3)

ans =

0.3333

sympref('FloatingPointOutput',false);

sym(1/3)

ans =