Could you help me please??

Suppose I have a function

f=inline('x^3+2');
x1=2; x2=-2; x3=4;
Fmin=min(f(x1),f(x2),f(x3))

Now I want to find the value of x (i.e x1 or x2 or x3) corresponding to Fmin Xmin=value of x corresponding to Fmin How to do this??

Answer 1

[Star Strider]

You have to make vectors out of them, then it works:

f = @(x) x.^3+2;                        % Changed ‘inline’ To Anonymous Function
x1=2; x2=-2; x3=4;
[Fmin,ix] = min([f(x1),f(x2),f(x3)]);   % Vector Of ‘f(x)’
x = [x1 x2 x3];                         % Vector Of ‘x’
xFmin = x(ix)                           % ‘argmin’