Make MATLAB output in strict ASCII

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marcel hendrix 2025-7-3

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https://ww2.mathworks.cn/matlabcentral/answers/2178233-make-matlab-output-in-strict-ascii

评论： Walter Roberson 2025-7-6

MATLAB console output used high-ASCII sometimes, e.g. for its prompt ( » ). In R2025A it may output UTF8, e.g., for zpk() output:

z =
0├ù1 empty double column vector
p =
9.900494692205900e-01
k =
9.950657811787363e-03

This 'feature' is a nuisance when interchanging text with other programs. Is there a built-in function to convert these occasional UTF non-ASCII characters to a reasonable approximation in standard ASCII? ( like 'x' or '>>') ?

Or is this behavior to be considered a bug that will be fixed (there appear to be quite a few nuisance bugs in R2025a).

-marcel

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marcel hendrix 2025-7-6

> z = zeros(0,1)

One recognizes an expert by his concise examples :-) I actually used it just now to verify the problem.

Matlab R2023b did not use the 'small x'. (I have gone back to R2023b as I encountered a host of [what I consider to be] breaking changes in R2025a).

Walter Roberson 2025-7-6

I was wrong, by the way, in saying that 0xD7 required only one byte in UTF-8.

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回答（1 个）

Walter Roberson 2025-7-3

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https://ww2.mathworks.cn/matlabcentral/answers/2178233-make-matlab-output-in-strict-ascii#answer_1567548

Is there a built-in function to convert these occasional UTF non-ASCII characters to a reasonable approximation in standard ASCII? ( like 'x' or '>>') ?

No, there is no built-in function for that purpose.

Any such hypothetical built-in function would have to deal with the problem of contention about what the replacements should be. For example should × be replaced with x or with * or with by or with times ? The answer is likely to depend on context -- in some places × should be replaced by x but in some places it should be replaced by *