How to set an assumption on a symbolic variable in a symbolic expression?
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Hello!
I want to solve some equations using symbolic math toolbox.I only get some strings like '3*x1-2*x2'.x1,x2 should be positive numbers.
I can use str2sym(string) to get a symbolic expression 3*x1-2*x2.
Then, how to set an assumption on x1,x2 in the symbolic expression? The assumption is x1>0,x2>0.
Thank you in advance
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