数学建模与数学实验（第3版）课件+matlab

				        [x,y,z]=peaks;
				        subplot(1,2,1)       
				        contour3(x,y,z,16,'s')   
				        grid,   xlabel('x-axis'),  ylabel('y-axis')
				        zlabel('z-axis')
				        title('contour3 of peaks'); 
				        subplot(1,2,2)
				        contour(x,y,z,16,'s')
				        grid,   xlabel('x-axis'),    ylabel('y-axis')
				        title('contour of peaks');