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The expression to the left of the equals sign is not a valid target for an assignment.

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zhang
zhang 2013-4-19
have someone crashed to this problem? when I run the code blew,an error return. hope someone can help me!
clear all
t0=0;
dt=0.05;
t1=1;
tf=5;
t=[t0:dt:tf];
st=length(t);
n1=floor((t1-t0)/dt)
x1=zeros(1,st);
x(n1)=1/dt;
subplot(2,2,1),stairs(t,x1),grid on
x2=[zeros(1,n1-1),ones(1,st-n1+1);
subplot(2,2,3);
stairs(t,x2);
grid on
w=10;;
u=-0.5;
x3=exp((u+j*w)*t);
subplot(2,2,2),plot(t,real(x3)),grid on;
subplot(2,2,4),plot(t,imag(x3)),grid on;

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回答（1 个）

the cyclist
the cyclist 2013-4-19
Looks like you left off the closing bracket in the line
x2=[zeros(1,n1-1),ones(1,st-n1+1);
Guessing it should be
x2=[zeros(1,n1-1),ones(1,st-n1+1)];

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