matlab的反拉式变换问题求电路的冲激响应,已经反拉式变换了,想要画图表现出来,但是总是提示出错Undefined function or variable 't'.Error in ==> chongjixiangying at 11plot(t,I2t,'b')我看不明白是怎么回事,提
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![matlab的反拉式变换问题求电路的冲激响应,已经反拉式变换了,想要画图表现出来,但是总是提示出错Undefined function or variable 't'.Error in ==> chongjixiangying at 11plot(t,I2t,'b')我看不明白是怎么回事,提](/uploads/image/z/6748580-20-0.jpg?t=matlab%E7%9A%84%E5%8F%8D%E6%8B%89%E5%BC%8F%E5%8F%98%E6%8D%A2%E9%97%AE%E9%A2%98%E6%B1%82%E7%94%B5%E8%B7%AF%E7%9A%84%E5%86%B2%E6%BF%80%E5%93%8D%E5%BA%94%2C%E5%B7%B2%E7%BB%8F%E5%8F%8D%E6%8B%89%E5%BC%8F%E5%8F%98%E6%8D%A2%E4%BA%86%2C%E6%83%B3%E8%A6%81%E7%94%BB%E5%9B%BE%E8%A1%A8%E7%8E%B0%E5%87%BA%E6%9D%A5%2C%E4%BD%86%E6%98%AF%E6%80%BB%E6%98%AF%E6%8F%90%E7%A4%BA%E5%87%BA%E9%94%99Undefined+function+or+variable+%27t%27.Error+in+%3D%3D%3E+chongjixiangying+at+11plot%28t%2CI2t%2C%27b%27%29%E6%88%91%E7%9C%8B%E4%B8%8D%E6%98%8E%E7%99%BD%E6%98%AF%E6%80%8E%E4%B9%88%E5%9B%9E%E4%BA%8B%2C%E6%8F%90)
matlab的反拉式变换问题求电路的冲激响应,已经反拉式变换了,想要画图表现出来,但是总是提示出错Undefined function or variable 't'.Error in ==> chongjixiangying at 11plot(t,I2t,'b')我看不明白是怎么回事,提
matlab的反拉式变换问题
求电路的冲激响应,已经反拉式变换了,想要画图表现出来,但是总是提示出错
Undefined function or variable 't'.
Error in ==> chongjixiangying at 11
plot(t,I2t,'b')
我看不明白是怎么回事,提示是说t有问题,难道反变换之后不能直接使用吗?是不是I2t里面没有变量的原因?
clear
clc
clf
syms s
U1s=(1+2*s)/(2*s^3+5*s^2+5*s+3);
I2s=U1s/(1+2*s);
U0s=U1s*2*s/(1+2*s);
I2t=ilaplace(I2s)
U0t=ilaplace(U0s)
t=0:0.01:16;
subplot(2,1,1)
plot(t,I2t,'b')
title('冲击电流');
xlabel('t(s)');
ylabel('I(A)');
subplot(2,1,2)
plot(t,U0t,'r')
title('冲击电压');
xlabel('t(s)');
ylabel('U(V)');
matlab的反拉式变换问题求电路的冲激响应,已经反拉式变换了,想要画图表现出来,但是总是提示出错Undefined function or variable 't'.Error in ==> chongjixiangying at 11plot(t,I2t,'b')我看不明白是怎么回事,提
这次好了.用subs
clear
clc
clf
syms s
U1s=(1+2*s)/(2*s^3+5*s^2+5*s+3);
I2s=U1s/(1+2*s);
U0s=U1s*2*s/(1+2*s);
I2t=ilaplace(I2s)
U0t=ilaplace(U0s)
t=0:0.1:16;
I2t=subs(I2t)
U0t=subs(U0t)
subplot(2,1,1)
plot(t,I2t,'b')
title('冲击电流');
xlabel('t(s)');
ylabel('I(A)');
subplot(2,1,2)
plot(t,U0t,'r')
title('冲击电压');
xlabel('t(s)');
ylabel('U(V)');