[
C\u1;

inv(u1'*u1);

u1 >= u2;

u1 == (u1 + un) - 1;

0 - a*(c*u2);

b*u1 ([1,2], :);

sin(a(1:2,1:2)+ b*u1([1,2],:));

u1(:,$-1)*u1(:,$-1)';

[c,c]*[[1:4]',u1,u2;[u1,u2,[1:4]']];

inv([inv(u1'*c*u1+ones(size(u1,2),size(u1,2))),zeros (size(u1,2),1);zeros(size(u1,2),1)',u2($)]);

(u1+1)(2,2);

sin(([[1:2]]));

a(1:2)

//a(1,1,$);

//a(1,:,$);

//u1(1,2,3)
]
