Matlab

1/ 拟合多项式 polyfit

polyval, 求解拟合后的数据点值

2/simulink的  scope显示时，没有菜单，比如 copy figure等用不了，用以下命令调出菜单

shh = get(0,'ShowHiddenHandles');
set(0,'ShowHiddenHandles','On')
set(gcf,'CloseRequestFcn','closereq')
set(gcf,'menubar','figure')
set(gcf,'DefaultLineClipping','Off')
set(0,'ShowHiddenHandles',shh)