MathGroup Archive 2004

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: problem writing a simple equation--urgent!!!


x[y_] := y^2;

u[y_, z_] := x[y] + 2*x[z]

u[2,4]

36


Bob Hanlon

> 
> From: erkenays at yahoo.com (aysegul)
To: mathgroup at smc.vnet.net
> Date: 2004/08/29 Sun AM 03:54:07 EDT
> To: mathgroup at smc.vnet.net
> Subject: [mg50360] [mg50359] problem writing a simple equation--urgent!!!
> 
> Hi all,
> I have a problem about writing an equation in mathematica.
> I am writing the following equation:
> u[x_, y_] = x + 2*y
> and when I write for example u[2,4] , it gives the result. But the
> problem that I have is expressing this equation with parameters. That
> is
> u[x[1], x[2]] = x[1] + 2*x[2]
> but when I ask u[2,4];
> it gives u[2,4] result.It doesn't calculate.
> So, how can I write this equation? 
> Thanks all.
> 
> 


  • Prev by Date: Re: Comparison of Mathematica on Various Computers
  • Next by Date: Re: problem writing a simple equation--urgent!!!
  • Previous by thread: Re: problem writing a simple equation--urgent!!!
  • Next by thread: Re: problem writing a simple equation--urgent!!!