Question: Multiplier in a specific range

Dear all,

I am creating an animation, and I was wondering if I can add a multiplier to my equation in a specific range.  So starting from z:=0.2 add a multiplier (z+1). The code I have so far is added. Does anyone know a code for this?

Kind regards

restart; 
with(plots); 
a := -1/2; b := 1/2; c := -2; d := 2; n := 20; 
g := proc (x) options operator, arrow; value(Int(sigma(t), t = 0 .. x)) end proc; 
sigma := proc (z) options operator, arrow; 2*sqrt(2*h^2-4*z^2)*z/h^2 end proc; 
h := i/n; 
for i to n do 
an2[i] := plot(sigma(z), z = -(1/2)*h .. (1/2)*h, view = [a .. b, c .. d], color = AQUAMARINE); 
an3[i] := plot(2*g(x), x = 0 .. (1/2)*h, view = [a .. b, c .. d], color = RED) 
end do; 
p := plots[display]([seq(an2[i], i = 1 .. n)], insequence = true); 
q := plots[display]([seq(an3[i], i = 1 .. n)], insequence = true); display(p, q)

 

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