很好很实现的matlab工程绘图命令的讲解资料-Is to achieve a good command matlab engineering drawings to explain the information

GTRACK Track mouse position and show coordinates in figure title. GTRACK Activates GTRACK. Once it is active the mouse position is constantly tracked and printed on the figure title. A left-click will print the coordinates in the command line a

Here the syms toolbox is used and if you try to print any other values than lambda then MATLAB will print the value in fractions and that is unavoidable. So if you need to know the value in decimal, then use the command vpa() on command window-Here t