Question

matlab绘制函数 函数f(y)=3*y*log(y)-1/30*exp[-（30*y-30/e）^4] 怎么绘制啊？谢了！

结果如图下：

Answer 1

命令：y=0:0.001:1;

f(1,:)=3*y.*log(y)-1/30*exp(-(30*y-30/exp(1)).^4);

f(2,:)=2.5*y.*log(y)-1/30*exp(-(30*y-30/exp(1)).^4);

f(3,:)=2.5*y.*log(y)-1/36*exp(-(30*y-30/exp(1)).^4);

f(4,:)=2*y.*log(y)-1/36*exp(-(30*y-30/exp(1)).^4);

f(5,:)=2*y.*log(y)-1/50*exp(-(30*y-30/exp(1)).^4);

plot(f,y);

legend('1','2','3','4','5')

 

 

 

差不多的啊，哈哈