MATLAB: Interpolating near discontinuties

jump discontinuityplotting

Hello Everyone,

I have a very itchy problem.

I am trying to plot the following function which has jump discontinuities.

x=0:0.0001:2;
y=5*x;
x1=2:0.0001:3;
y1=5*(x1)+1;
plot(x,y,x1,y1);

This is giving a plot which has a jump discontinuity at 2. I want the matlab to join discontinuity by a line.

Thanks in advance.

Thanks & Regards,

Arun Sahu

f = @(x)5*x + (x > 2)
plot(0:1e-4:3,f(0:1e-4:3))

OR:

x=0:0.0001:2;
y=5*x;
x1=2:0.0001:3;
y1=5*(x1)+1;
plot([x,x1],[y,y1]);

The range for ‘X’ is wrong.

Try this:

X=1.5:0.1:4.1; 
Y=-1./3.*(X-2).*(X-2.5).*((X./2)-2.75).*((X./5)-3.25).*(X-4)-1.45;

The rest of the code is unchanged.

With a few changes, it works:

hold on
x=0:0.01:pi;
for k1 = 1:length(x)
    y(k1)=sin(x(k1));
end
plot(x,y)
grid on
grid minor