填空题 ,当x和y的取值范围均为-2到2时,用建立子窗口的方法在同一个图形 窗口中绘制出三维线图、网线图、表面图和带渲染效果的表面图. >> [x,y]=___________________([-2:.2:2]); >> z=x.*exp(-x.^2-y.^2); >> mesh(x,y, z) >> _______________(2,2,1),plot3(x,y,z) >> title('plot3 (x,y,z)') >> subplot (________________), >>________________(x, y, z) >> title('mesh (x,y,z)') >> subplot (2,2,3),surf (x,y, z) >> title('surf (x,y,z)') >> subplot(2, 2, 4), >>surf (x,y,z) >>_________________interp >> title('surf (x,y,z), shading interp')