Re: piecewise vs which
- To: mathgroup at smc.vnet.net
- Subject: [mg60115] Re: piecewise vs which
- From: "dkr" <dkrjeg at adelphia.net>
- Date: Sat, 3 Sep 2005 02:06:02 -0400 (EDT)
- References: <df9437$620$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
This is not a bug. By default Piecewise gives a value of 0 if none of
the conditions apply. But you can add an extra argument to change that
default.
In[1]:=
f[x_]:=Piecewise[{{x^2,x<2},{3x,x>2}},Null];
In[2]:=
f[2]
In[3]:=
g[x_]=Which[x<2,x^2,x>2,3x];
In[4]:=
g[2]