Plotting a function error.

Spiros Arkoudelis

2018 12 18

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Hello i am tryinfg to plot the abs of Y:

x=-400:400;
Y=1./(j*x+3);
(abs(Y))
title('Fourier's transform of h(t)=e^(-3t)*u(t)');
xlabel('-400 < x < 400 (rad/sec)') 
ylabel('Fouriers Transform of h(t)')
plot(Y)

but i am taking all the time the following error message:

Invalid expression. Check for missing

multiplication operator, missing or unbalanced

delimiters, or other syntax error. To construct

matrices, use brackets instead of parentheses.

Please help!

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采纳的回答

madhan ravi 2018-12-18

编辑：madhan ravi 2018-12-18

在 MATLAB Online 中打开

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EDITED

clear all
x=-400:400;
Y=1./(j.*x+3);
y=(abs(Y));
plot(x,y)
xlabel('-400 < x < 400 (rad/sec)') 
ylabel('Fouriers Transform of h(t)')
title('Fouriers transform of h(t)=e^{-3t}*u(t)')