fz11.asv

fz作业

clear all;
close all hidden;

c=[-5,-2.5,0,2.5,5];
x=-5:0.25:5;
%A1
f=0;
for i=1:1:length(x)
    if x(i)<c(3)
        f(i)=(x(i)-c(2))/(c(3)-c(2));
    elseif x(i)>c(3)
        f(i)=(c(4)-x(i))/(c(4)-c(3));
    else
        f(i)=1;
    end
    
    if f(i)<0
        f(i)=0;
    end
end
%A2
f1=0;
for i=1:1:length(x)
    if x(i)<c(2)
        f1(i)=(x(i)-c(1))/(c(2)-c(1));
    elseif x(i)>c(2)
        f1(i)=(c(3)-x(i))/(c(3)-c(2));
    else
        f1(i)=1;
    end
    
    if f1(i)<0
        f1(i)=0;
    end
end
%A3
f2=0;
for i=1:1:length(x)
    if x(i)<c(4)
        f2(i)=(x(i)-c(3))/(c(4)-c(3));
    elseif x(i)>c(4)
        f2(i)=(c(5)-x(i))/(c(5)-c(4));
    else
        f2(i)=1;
    end
    
    if f2(i)<0
        f2(i)=0;
    end
end
plot(x,f,x,f1,x,f2)
title('A1                       A2                      A3')
xlabel('x');
ylabel('');
set(gca,'xtick',[-5,-2.5,0,2.5,5]);
set(gca,'ytick',[0,1]);