matlab积分与绘图
clear;syms x y;f=x*sqrt(y);int(int(f,y,x*x,sqrt(x)),x,0,1)x=[1:0.1:2];y=sin(x);y2=sin(x)+cos(x);plot(x,y,'ro-.',x,y2,'bo'),xlabel('x'),ylabel('y'),legend('y1','y2');title('lx')% plot(x,y2),...
