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Error using plot for symbolic function

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Sam
Sam 2017-12-28
编辑： Walter Roberson 2017-12-28
Hello,
My code is the following one:
syms g(x) x
t = [0:0.005:4];
wn = 10;
zeta = 2;
g(x) = wn/(sqrt((zeta*zeta)-1)) * exp(-(zeta*wn*x))*sinh(wn*sqrt((zeta*zeta)-1)*x);
plot(t,g(x));
I get the error 'A numeric or double convertible argument is expected'. I can't find what i'm doing wrong...

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Walter Roberson
Walter Roberson 2017-12-28
plot(t, g(t))

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