Re: 2 equations 2 conditions

• To: mathgroup at smc.vnet.net
• Subject: [mg29177] Re: 2 equations 2 conditions
• From: Flip at safebunch.com
• Date: Fri, 1 Jun 2001 04:15:39 -0400 (EDT)
• References: <9f4dqa\$a7c\$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```Hello,

there are several ways to do it.  You can use If or Which.

Example:

(* if[condition, true, false] *)

In[54]:=
w[i_,j_]:=If[i > j, Print["Eq 2"],Print["Eq 1"]]

In[55]:=
w[1,2]

Eq 1

In[56]:=
w[2,1]

Eq 2

Of course you would substitute your eq1 and eq2 appropriately.

Cheers ... Wilson

In article <9f4dqa\$a7c\$1 at smc.vnet.net>, Su Su Win says...
>
>Hello,
>
>I have problem. I am sorry if my question is very simple because I am only
>beginner and trying to familiar with for Mathematica.
>
>I have 2 equations to calculate W(i,j)=Function of (z, L(i,j)).
>Equation(1) is used when i>j and Equation(2) when i<=j.
>If I have to use if...then, how can i ask Mathematica to take the correct
>equation according to condition?
>Thanks a lot.
>
>Win
>
>

```

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