Minimizing a multivariable function

function b=three_var(v)
x=v(1);
y=v(2);
z=v(3);
b=(x-10)^2+(y-4)^2+(z-0.9)^2+3*(1-x*y*z)^2
v=[5,5,5];
a=fminsearch(@three_var,v)

I would like to find minumum multivariable function in matlab

f(x,y,z)=(x-10)^2+(y-4)^2+(z-0.9)^2+3*(1-x*y*z)^2 (x0,y0,z0)=(5,5,5)

ı tried above solution but it has error can anybody help me please

Answer 1

[Star Strider]

Your code works for me as you posted it. (I added an end as the last line of the function, because I have a test function I use to test functions, and that requires the end call.)

With that one change, I got these results:

a =
   9.997810194891304
   3.994471169491158
   0.025222197590888

[imren bayil]

when I run this code,it writing Error using Untitled (line 2) Not enough input arguments.

[Star Strider]

I have no idea what you are doing.

Save your function in its own file in your MATLAB search path as three_var.m. Then run these lines from your script:

v=[5,5,5];
a=fminsearch(@three_var,v)