matlab实验1 答案

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1、Matlab曲线绘图练习1.绘出立方曲线。x=-2:0.05:2;y=x.^3;plot(x,y)gridon2.立方抛物线。y=-2:0.05:2;x=y.^3;plot(x,y)gridon3.高斯曲线。clear;x=-2:0.05:2;y=exp(-x.^2);plot(x,y)以参数方程表示的曲线：4.奈尔抛物线clear;t=-2:0.05:2;x=t.^3;y=t.^2plot(x,y)y=Columns1through144.00003.80253.61003.42253.24003.06252.89002.72252.56002.40252.

2、25002.10251.96001.8225Columns15through281.69001.56251.44001.32251.21001.10251.00000.90250.81000.72250.64000.56250.49000.4225Columns29through420.36000.30250.25000.20250.16000.12250.09000.06250.04000.02250.01000.002500.0025Columns43through560.01000.02250.04000.06250.09000.12250.16000.

3、20250.25000.30250.36000.42250.49000.5625Columns57through700.64000.72250.81000.90251.00001.10251.21001.32251.44001.56251.69001.82251.96002.1025Columns71through812.25002.40252.56002.72252.89003.06253.24003.42253.61003.80254.00005.半立方抛物线clear;t=-2:0.05:2;x=t.^2;y=t.^3plot(x,y)y=Columns

4、1through14-8.0000-7.4149-6.8590-6.3316-5.8320-5.3594-4.9130-4.4921-4.0960-3.7239-3.3750-3.0486-2.7440-2.4604Columns15through28-2.1970-1.9531-1.7280-1.5209-1.3310-1.1576-1.0000-0.8574-0.7290-0.6141-0.5120-0.4219-0.3430-0.2746Columns29through42-0.2160-0.1664-0.1250-0.0911-0.0640-0.042

5、9-0.0270-0.0156-0.0080-0.0034-0.0010-0.000100.0001Columns43through560.00100.00340.00800.01560.02700.04290.06400.09110.12500.16640.21600.27460.34300.4219Columns57through700.51200.61410.72900.85741.00001.15761.33101.52091.72801.95312.19702.46042.74403.0486Columns71through813.37503.723

6、94.09604.49214.91305.35945.83206.33166.85907.41498.00006.迪卡尔曲线clear;a=3;t=-2:0.05:2;x=3*a.*t./(1+t.^2);y=3*a.*t.^2./(1+t.^2);plot(x,y);gridon7.蔓叶线clear;a=2;t=-10:0.05:10;x=a.*t.^2./(1+t.^2);y=a.*t.^3./(1+t.^2);plot(x,y);gridon8.摆线。clear;a=1;b=2;t=linspace(0,6*pi,100);x=a*(t-sin(t));

7、y=b*(1-cos(t));plot(x,y);gridon9.内摆线（星形线）。clear;a=1;t=linspace(0,2*pi,100);x=a*cos(t).^3;y=a*sin(t).^3;plot(x,y)gridon10.圆的渐伸线（渐开线）。clear;a=1;t=linspace(0,6*pi,101);x=a*(cos(t)+t.*sin(t));y=a*(sin(t)-t.*cos(t));plot(x,y)11.空间螺线。clear;a=1;b=2;c=3;t=-2:0.05:2;x=a*cos(t);y=b*sin(t);z=c

8、*tplot3(x,y,z)z=Col