matlab图形保存及图例的设置和函数.doc

图形的保存的步骤：figureeditcopy figure例1：x=0,0.48,0.84,1,0.91,0.6,0.14; subplot(2,2,1) plot(x) hold on subplot(2,2,2) plot(x,*) subplot(2,2,3) plot(x,-b*) subplot(2,2,4) plot(x,-k*)x=0:0.01:2*pi; y1=sin(x); y2=cos(x); plot(x,y1,b,x,y2,r) legend(正弦曲线,余弦曲线) title(正弦与余弦曲线) xlabel(x) ylabel(y) x=-5:5x = Columns 1 through 9 -5 -4 -3 -2 -1 0 1 2 3 Columns 10 through 11 4 5 y=xy = Columns 1 through 9 -5 -4 -3 -2 -1 0 1 2 3 Columns 10 through 11 4 5 X,Y=meshgrid(x,y)X = Columns 1 through 9 -5 -4 -3 -2 -1 0 1 2 3 -5 -4 -3 -2 -1 0 1 2 3 -5 -4 -3 -2 -1 0 1 2 3 -5 -4 -3 -2 -1 0 1 2 3 -5 -4 -3 -2 -1 0 1 2 3 -5 -4 -3 -2 -1 0 1 2 3 -5 -4 -3 -2 -1 0 1 2 3 -5 -4 -3 -2 -1 0 1 2 3 -5 -4 -3 -2 -1 0 1 2 3 -5 -4 -3 -2 -1 0 1 2 3 -5 -4 -3 -2 -1 0 1 2 3 Columns 10 through 11 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5 4 5Y = Columns 1 through 9 -5 -5 -5 -5 -5 -5 -5 -5 -5 -4 -4 -4 -4 -4 -4 -4 -4 -4 -3 -3 -3 -3 -3 -3 -3 -3 -3 -2 -2 -2 -2 -2 -2 -2 -2 -2 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 Columns 10 through 11 -5 -5 -4 -4 -3 -3 -2 -2 -1 -1 0 0 1 1 2 2 3 3 4 4 5 5 z=X.2+Y.2z = Columns 1 through 8 50 41 34 29 26 25 26 29 41 32 25 20 17 16 17 20 34 25 18 13 10 9 10 13 29 20 13 8 5 4 5 8 26 17 10 5 2 1 2 5 25 16 9 4 1 0 1 4 26 17 10 5 2 1 2 5 29 20 13 8 5 4 5 8 34 25 18 13 10 9 10 13 41 32 25 20 17 16 17 20 50 41 34 29 26 25 26 29 Columns 9 through 11 34 41 50 25 32 41 18 25 34 13 20 29 10 17 26 9 16 25 10