minimize with complex numbers

*To*: mathgroup at smc.vnet.net*Subject*: [mg91253] minimize with complex numbers*From*: shama shahbaz <shammashahbaz at yahoo.com>*Date*: Mon, 11 Aug 2008 06:08:18 -0400 (EDT)*Reply-to*: shammashahbaz at yahoo.com

hi , when i use minimize command with real numbers i get the required answer but with complex number it doesnt give me any answer or error Syntax::sntxb : Expression cannot begin with "(1+1 i) ` x[1]+(1-1 i) ` x[2]". Syntax::tsntxi : "(1+1 i) ` x[1]" is incomplete; more input is needed. Syntax::sntxi : Incomplete expression; more input is needed. My minimize expression is ((1+1i)*x[1] +(1-1i)*x[2] )^2 +(x[1]+x[2])^2 in methamatica it becomes Minimize[{( x[1]+x[2])2 +((1+1i)x[1]+(1-1 i)x[2])2},{x[1],x[2]}] i want my answer to be in complex number come somebody tell me where i am wrong thanx