例5-2.m

来自「上传最新Matlab7基础与提高,与各位爱好者分享」· M 代码 · 共 10 行

>> a=[1:200]*pi/100;
>> s=sin(a);
>> c=cos(a);
>> t=(1+a.*a-20)/40;
>> a=a/pi;
>> hold on
>> plot(a,s,'r-');
>> plot(a,c,'g:');
>> plot(a,t,'b-');