how can I convert a string to an expression which "symvar" can search for identifiers?
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how can I convert a string to an expression which "symvar" can search for identifiers?
I use this: symvar 'cos(pi*x - beta1)'
ans =
'beta1'
'x'
and it works, but when I use this:
insertfunction='cos(pi*x - beta1)'
symvar insertfunction
it doesn't have the same results. How can I make it?
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Ivan van der Kroon
2011-6-7
insertfunction='cos(pi*x - beta1)'
>> symvar(insertfunction)
ans =
'beta1'
'x'
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