... f=uocluong2(dl1,dl 2) %dl1, dl2 chiều liệu syms x1 x2 s=sym('s(x1,x 2)' ); f=sym('f(x1,x 2)' ); h1=std(dl 1)/ (length(dl 1)) ^(1 / 6); h2=std(dl 2)/ (length(dl 2)) ^(1 / 6); s=0; for i=1:length(dl 1) s=s +(1 /(2 *pi)^.5*exp( -(( (x1-dl 1(1 ,i )) / h 1)^ 2/ 2)) ) *(1 /(2 *pi)^.5*exp( -(( (x2dl 2(1 ,i )) / h 2)^ 2/ 2)) ); ... (- 1.17;-1.9 7) (1 .05;0.4 9) (- 0.84;0.7 1) (- 0.57;-1.3 8) (1 .2;0.4 4) (2 .21;-1.0 9) (0 .06;-0.0 6) (0 .18;-0.9 8) (- 1.38;0.5 1) (0 .73;0.1 8) (- 0.47;-0.1 4) (- 1.08;0.6 3) (0 .66;-0.3 3) (- 0.26;0.6 6) (0 .49;-0.3 3) (0 .47;-0.5 1) ... (- 1.38;-0.0 6) (0 .49;-0.0 8) (1 .02;- 1) (- 1.17;-1.9 7) (- 0.57;-1.3 8) (0 .06;-0.0 6) (- 1.38 ;0.4 9) (1 .2 ;0.2 1) (- 1.44 ;1.5 9) (- 0.06;1.6 1) (0 .44;-0.9 8) (2 .55;0.0 5) (1 .05;0.4 9) (1 .2;0.4 4) (0 .18;-0.98)...