RE: := vs. =
- To: mathgroup at smc.vnet.net
- Subject: [mg8896] RE: [mg8858] := vs. =
- From: Jean-Marie THOMAS <jmthomas at cybercable.tm.fr>
- Date: Thu, 2 Oct 1997 22:56:49 -0400
- Sender: owner-wri-mathgroup at wolfram.com
Have a look in the MMA book and see the difference between Set and = SetDelayed: for instance: f[x_]=3DaCertainFunctionOf[data] makes sense if and only if data has = already been defined. If not, you have to use f[x_]:=3D etc. -------------------------------------------------------------------------= ------------------ Jean-Marie THOMAS Conseil et Audit en Ing=E9nierie de Calcul Strasbourg, France phone 03 88 32 93 64 email jmthomas at cybercable.tm.fr web www.cybercable.tm.fr/~jmthomas -------------------------------------------------------------------------= ------------------ -----Original Message----- From: Frank Roescher [SMTP:froesche at dekalb.dc.peachnet.edu] To: mathgroup at smc.vnet.net Sent: mercredi 1 octobre 1997 02:16 To: mathgroup at smc.vnet.net Subject: [mg8858] :=3D vs. =3D When I define a function on Mathematica, I use f[x_]=3Dxxxxx, without using a colon. It seems to work just fine. Is there a risk in leaving out the colon? Thanks. Frank