matlab求和函数的画图表示

想实现
t=1:10;
plot（t,y）;
应该怎么写呢？

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t=1:10;

a = 1 : 1 : 10;
for i = 1:10
b(i) = a(i)./宏辩返蔽饥灶纯(a(i)-1);
b(1) = [];
y(i) = sum(b);
end
plot(t,y);

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