issquare

issquare(ones(10,10))
issquare(1)
issquare(["s" "t"; "t" "s"])
issquare(rand(2,1,2))
issquare(rand(2,2,3))
s = struct();
issquare(s) // Empty structure
clear s
s.a = %z;
s.b = 2;
issquare(s); // Scalar structure
clear s
s(1,2).a = 3;
s(1,3).b = %z;
issquare(s) // Row array of structures
clear s
s(2,1).a = "w";
s(3,1).b = %t;
issquare(s) // Column array of structures
clear s
s(1,2).a = -2;
s(3,1).b = %pi;
issquare(s) // 2D not-square array of structures
clear s
s(2,2,2).a = %f;
s(1,2,1).b = list(%e, %s);
issquare(s) // 3D (cubic) array of structures
clear s
s(2,1,2).a = 3;
s(1,1,2).b = "test";
issquare(s) // 3D array of structures (with a singleton dim)