6-47.m

MATLAB科学计算与工程分析源代码源程序5

clear
syms x y
f=x;
f1=2*x;
f2=0.5*x;
f3=3-x;
ezplot(f1);
hold on
ezplot(f2);
hold on
ezplot(f3);
hold on
ezplot(f3,[-2,3])
A=fzero('2*x-0.5*x',0)
B=fzero('3-x-0.5*x',8)
C=fzero('2*x-(3-x)',4)
ff1=int(f,0.5*x,2*x)
ff11=int(ff1,0,1)
ff2=int(f,0.5*x,3-x)
ff22=int(ff2,1,2)
 ff11+ff2