I would create ‘SomeConstant’ as an anonymous function:
x = [0:100];
y = [0:100];
SomeConstant = @(y) [1*(y == 20) + 5*(y < 20) + 10*(y > 20)];
Test1 = @(x,y)(x+y)+SomeConstant(y);
Test2 = @(x,y)(x.^2+y)+SomeConstant(y);
[X1,Y1] = meshgrid(x,y);
Z1 = Test1(X1,Y1);
Z2 = Test2(X1,Y1);
s1 = surf(X1,Y1,Z1,'LineStyle','none');
hold on
s2 = surf(X1,Y1,Z2,'LineStyle','none');
You defined ‘SomeConstant’ to be 1, and then defined it as being 5 for y<20 and 10 for y>20. I created the anonymous function version with those conditions, adding the condition that it was 1 at y==20.
This works, but you have to determine if it produces the result you want.
