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Converting sym to string without 'matrix....' before

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Marco
Marco 2013-9-26
评论： Walter Roberson 2020-11-26
Hi,
I need some help to convert a symbolic array to string.
I tried with:
syms a b c
Array = [a b c];
string = char(Array);
but it returns
matrix([[a b c]]);
Is there a way to take only the string inside ? I need set it to take '[a b c]' as string.
Thanks

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Wayne King
Wayne King 2013-9-26
Can you tell us the use case here, you just want to display it as a string?
One thing you can do is
syms a b c
Array = [a b c];
array_string = char(Array);
array_string([1:8, end-1:end]) = [];
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genevois pierre
genevois pierre 2020-11-25
if I want to execute a program in which at least one line contains matrix, an error comes ...
Is there no more convenient conversion from a symbolic (which is coming from solve) to a character vector than that using char ?
Walter Roberson
Walter Roberson 2020-11-26
No, there is no more convenient way.
Caution: char() of a symbolic expression gives a result which is not exactly a MATLAB expression, and which is not exactly a MuPAD expression either. You should only use char() of a symbolic expression for display purposes.
If you need to generate MATLAB code from a symbolic expression, use matlabFunction(), possibly followed by func2str()

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Walter Roberson
Walter Roberson 2017-11-7
In the case of symbolic row vectors:
['[', strjoin(arrayfun(@char, Array, 'uniform', 0),', '), ']']

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