//page 70 clear; close; clc; disp('Consider all vectors in R^2 whose components are positive or zero') disp('The subset is first Quadrant of x-y plane,the co-ordinates satisfy x>=0 and y>=0.It is not a subspace.') v=[1,1]; disp(v,'If the Vector='); disp('Taking a scalar,c=-1') c=-1; //scalar disp(c*v,'c*v=') disp('It lies in third Quadrant instead of first,Hence violating the rule(ii).') //end