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When I try to implement the example for solve, x is returned

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Ellie
Ellie 2017-4-11
关闭： MATLAB Answer Bot 2021-8-20
When I try to implement the example for solve in the Matlab Documentation I get solx = x, rather than solx = pi/2 like in the documentation.
syms x
eqn = sin(x) == 1;
solx = solve(eqn,x)
Also, maybe unrelated, but I do have the symbolic toolbox, but vpasolve is undefined when I try to use it. I have R2016b, is the command a new one?

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