e0612.m

《MATLAB 7.X程序设计》-王建卫-源代码及习题答案

x = 0:0.1:10;y = x.^2 - 10.*x + 26;
figure(1)
subplot(2,2,1) ; plot(x,y); %绘制直角坐标系图形
title ('Linear Plot');xlabel ('x');ylabel ('y');grid on; 
subplot(2,2,2); semilogx(x,y); %绘制x轴用以10为底的对数刻度标定的半对数坐标系图形
title ('Semilog x Plot');xlabel ('x');ylabel ('y');grid on; 
subplot(2,2,3) ; semilogy(x,y); %绘制y轴用以10为底的对数刻度标定的半对数坐标系图形
title ('Semilog y Plot');xlabel ('x');ylabel ('y');grid on; 
subplot(2,2,4) ; loglog(x,y); %绘制对数坐标系图形
title ('Loglog Plot');xlabel ('x');ylabel ('y');grid on;