How to plot both graphs for the given condition, kindely help!

A=2;
thetap=pi/2;
d=6;
z=0:0.1:6;
if (0 < z <= d/2);
y=2*atan(exp(z*sqrt(A)+thetap))-pi/2;
else z > d/2 
    y=2*atan(exp(-(z-d)*sqrt(A)+thetap))-pi/2;
end
plot(y,z)

Answer 1

[Voss]

A=2;
thetap=pi/2;
d=6;
z=0:0.1:6;

y = zeros(size(z));
idx = 0 <= z & z <= d/2; % I imagine you mean 0 <= z, rather than 0 < z
y(idx) = 2*atan(exp(z(idx)*sqrt(A)+thetap))-pi/2;
y(~idx) = 2*atan(exp(-(z(~idx)-d)*sqrt(A)+thetap))-pi/2;

plot(y,z)

[DEEPAK KARARWAL]

thank you sir

[Voss]

You're welcome!