I wonder how to plot complex function

I want to know how to find and sketch the image of complex functions.

Answer 1

[Zenin Easa Panthakkalakath]

Have a look at the following code:

f = @(z) 2/(z-1); %defining the function f
z = linspace(-10,10,1000); %1000 evenly spaced points between -10 and 10

z = z.*(z-2<1); % z-2<1

plot(z,arrayfun(f,z));

[Zenin Easa Panthakkalakath]

Try something like this:

    f = @(z) 2/(z-1); %defining the function f
    z = linspace(1-i,3+i,10);
    z = z.*(abs(z-2)<1) % z-2<1
    f_val = arrayfun(f,z);
    plot(f_val);