matlab菜鸟问题>> x=0:.12:1;>> y=(x.^2-3*x+5).*exp(-5*x).*sin(x);>> plot(x,y,'o',x,y)>> x1=0:.12:1;>> y0=(x1.^2-3*x1+5).*exp(-5*x1).*sin(x1);>> y1=interp1(x,y,x1);>> y2=interp1(x,y,x1,'cubic');>> y3=interp1(x,y,x1,'spline');>> y4=interp1(x,y,x1,'n
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![matlab菜鸟问题>> x=0:.12:1;>> y=(x.^2-3*x+5).*exp(-5*x).*sin(x);>> plot(x,y,'o',x,y)>> x1=0:.12:1;>> y0=(x1.^2-3*x1+5).*exp(-5*x1).*sin(x1);>> y1=interp1(x,y,x1);>> y2=interp1(x,y,x1,'cubic');>> y3=interp1(x,y,x1,'spline');>> y4=interp1(x,y,x1,'n](/uploads/image/z/3165317-53-7.jpg?t=matlab%E8%8F%9C%E9%B8%9F%E9%97%AE%E9%A2%98%3E%3E+x%3D0%3A.12%3A1%3B%3E%3E+y%3D%28x.%5E2-3%2Ax%2B5%29.%2Aexp%28-5%2Ax%29.%2Asin%28x%29%3B%3E%3E+plot%28x%2Cy%2C%27o%27%2Cx%2Cy%29%3E%3E+x1%3D0%3A.12%3A1%3B%3E%3E+y0%3D%28x1.%5E2-3%2Ax1%2B5%29.%2Aexp%28-5%2Ax1%29.%2Asin%28x1%29%3B%3E%3E+y1%3Dinterp1%28x%2Cy%2Cx1%29%3B%3E%3E+y2%3Dinterp1%28x%2Cy%2Cx1%2C%27cubic%27%29%3B%3E%3E+y3%3Dinterp1%28x%2Cy%2Cx1%2C%27spline%27%29%3B%3E%3E+y4%3Dinterp1%28x%2Cy%2Cx1%2C%27n)
matlab菜鸟问题>> x=0:.12:1;>> y=(x.^2-3*x+5).*exp(-5*x).*sin(x);>> plot(x,y,'o',x,y)>> x1=0:.12:1;>> y0=(x1.^2-3*x1+5).*exp(-5*x1).*sin(x1);>> y1=interp1(x,y,x1);>> y2=interp1(x,y,x1,'cubic');>> y3=interp1(x,y,x1,'spline');>> y4=interp1(x,y,x1,'n
matlab菜鸟问题
>> x=0:.12:1;
>> y=(x.^2-3*x+5).*exp(-5*x).*sin(x);
>> plot(x,y,'o',x,y)
>> x1=0:.12:1;
>> y0=(x1.^2-3*x1+5).*exp(-5*x1).*sin(x1);
>> y1=interp1(x,y,x1);
>> y2=interp1(x,y,x1,'cubic');
>> y3=interp1(x,y,x1,'spline');
>> y4=interp1(x,y,x1,'nearest');
>> plot(x1,[y1'y2'y3'y4'],':',x,y,'o',x1,y0)
plot(x1,[y1'y2'y3'y4'],':',x,y,'o',x1,y0)
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Error:Unexpected MATLAB expression.
怎么回事啊 书上的示例输进去怎么还有错误.应该出5条曲线吧 为什么会这样呢
plot画多条曲线还是不怎么懂.
matlab菜鸟问题>> x=0:.12:1;>> y=(x.^2-3*x+5).*exp(-5*x).*sin(x);>> plot(x,y,'o',x,y)>> x1=0:.12:1;>> y0=(x1.^2-3*x1+5).*exp(-5*x1).*sin(x1);>> y1=interp1(x,y,x1);>> y2=interp1(x,y,x1,'cubic');>> y3=interp1(x,y,x1,'spline');>> y4=interp1(x,y,x1,'n
最后一行y1',y2',y3',y4'之间应该用,或空格隔开.
plot(x1,[y1' y2' y3' y4'],':',x,y,'o',x1,y0);