matlab實(shí)驗(yàn)7 圖形繪制

1、實(shí)驗(yàn)7：圖形繪制一、實(shí)驗(yàn)?zāi)康?、掌握繪制二維圖形的常用函數(shù)。2、掌握繪制三維圖形的常用函數(shù)。3、掌握繪制圖形的輔助操作。二、實(shí)驗(yàn)內(nèi)容1、已知，完成下列操作：213)2cos(212yyyxyxy???（1）在同一坐標(biāo)系下用不同的顏色和線型繪制三條曲線。%homewk_7_1_1.mx=0:pi100:2piy1=x.xy2=cos(2x)y3=y1.y2plot(xy1rxy2k:xy3b.)（2）以子圖形式繪制三條曲線。%homewk

2、_7_1_2.mx=0:pi100:2piy1=x.xy2=cos(2x)y3=y1.y2subplot(221)plot(xy1r)subplot(222)plot(xy2k:)subplot(223)plot(xy3b.)（3）分別用條形圖、階梯圖、桿圖和填充圖繪制三條曲線。%homewk_7_1_3.m%?￠?￠x=0:pi100:2piy1=x.xy2=cos(2x)y3=y1.y2%subplot(431)bar(xy1r)s

3、ubplot(432)bar(xy2k)subplot(433)bar(xy3b)%subplot(344)homewk_7_2(141)%nsubplot(341)homewk_7_2(111)subplot(342)homewk_7_2(112)subplot(343)homewk_7_2(113)subplot(344)homewk_7_2(114)3、分別用plot和fplot函數(shù)繪制函數(shù)的曲線，分析兩曲線的差別。xy1sin?

4、%homewk_7_3.mx=0:pi100:2piy=sin(1.x)plot(xy)%homewk_7_3_2_fplot.mfunctiony=homewk_7_3_fplot(x)y=sin(1.x)%homewk_7_3_2.mfplot(homewk_7_3_fplot[07]1e3)4、繪制函數(shù)曲面圖和等高線圖：（1）xyyxexxz?????22)2(2%homewk_7_4_1_6.mx=pi:0.1:pi[xy]=m

5、eshgrid(x)z=(x.x2.x).exp(x.xy.yx.y)surfc(xyz)xlabel(x)ylabel(y)zlabel(z)title(mesh)（2）?)(yxf2222)1(11)1(11yxyx???????%homewk_7_4_2_1.mx=pi:0.1:pi[xy]=meshgrid(x)z=1.(1sqrt((x1).^2y.^2))1.(1sqrt((x1).^2y.^2))surfc(xyz)xla