matlab执行下列命令后出错如下,请问该怎么改

t = 0:pi/20:2*pi;hline1 = plot(t,sin(t),'k');
%Next, add a shadow by offsetting the x-coordinates. Make the shadow line
light gray and wider than the %%default LineWidth:
hline2 = line(t+.06,sin(t),'LineWidth',4,'Color',[.8 .8 .8]);
%Finally, pop the first line to the front:
set(gca,'Children',[hline1 hline2])
Error using setChildren may only be set to a permutation of itself

除了有一行应该是注释，其它没问题啊
t = 0:pi/20:2*pi;hline1 = plot(t,sin(t),'k');
% Next, add a shadow by offsetting the x-coordinates. Make the shadow line 
% light gray and wider than the %%default LineWidth:
hline2 = line(t+.06,sin(t),'LineWidth',4,'Color',[.8 .8 .8]);
%Finally, pop the first line to the front:
set(gca,'Children',[hline1 hline2])

我在matlabr2012a上运行如下： sym x 改成 syms x >> syms x >> solve('-x+sinh(0.3466*log2((1+x)/(1-x)))=0') ans = 0 >>

如以上回答内容为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！

点此我要举报以上问答信息