Declaring a symbolic array real

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Kevin Bachovchin
Kevin Bachovchin 2014-2-20
编辑： Walter Roberson 2014-2-20
Hello,
Hello I'm trying to create a symbolic array and ensure that it is real. When I use the code:
List = {'x','y'}
A = sym(List,'real')
the array A is not real and A' yields unwanted conjugates. Why doesn't this code ensure that A is real, and how can I fix it?
Thank you, Kevin

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Walter Roberson
Walter Roberson 2014-2-20
编辑：Walter Roberson 2014-2-20
Using a cell array as the first argument to sym() is not a documented usage for any functionality of sym()
You can
sym('literalvariable', 'real')
and you can
sym(ExistingSymbolicArray, 'real')

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