While playing code, finding following error.

Error in Agrad_descent>@(x1,x2)((x1).^2+2*(x2).^2-4*(x1)-2*(x1.x2)) (line 40)

f = @(x1,x2)((x1).^2+2*(x2).^2-4*(x1)-2*(x1.x2));

Error in Agrad_descent>@(x)f(x(1),x(2)) (line 44)

f2 = @(x) f(x(1),x(2));

Error in Agrad_descent (line 128)

fopt = f2(xopt);

Following code written:

f = @(x1,x2)((x1).^2+2*(x2).^2-4*(x1)-2*(x1.x2));
f2 = @(x) f(x(1),x(2));
fopt = f2(xopt);

[Rik]

Backup of question:

While playing code, finding following error.

Error in Agrad_descent>@(x1,x2)((x1).^2+2*(x2).^2-4*(x1)-2*(x1.x2)) (line 40)

f = @(x1,x2)((x1).^2+2*(x2).^2-4*(x1)-2*(x1.x2));

Error in Agrad_descent>@(x)f(x(1),x(2)) (line 44)

f2 = @(x) f(x(1),x(2));

Error in Agrad_descent (line 128)

fopt = f2(xopt);

Following code written:

f = @(x1,x2)((x1).^2+2*(x2).^2-4*(x1)-2*(x1.x2));
f2 = @(x) f(x(1),x(2));
fopt = f2(xopt);

Answer 1

[VBBV]

f = @(x1,x2)((x1).^2+2*(x2).^2-4*(x1)-2*(x1.*x2))

[VBBV]

Give the multiplication operator in the term

(x1.*x2))