Re: Fold and Cross
- To: mathgroup at smc.vnet.net
- Subject: [mg83965] Re: Fold and Cross
- From: Szabolcs Horvát <szhorvat at gmail.com>
- Date: Wed, 5 Dec 2007 07:21:17 -0500 (EST)
- References: <fj0moc$ifi$1@smc.vnet.net>
Just one more thing: When working with scalar functions, you can directly assign to Derviative, e.g. In[1]:= Derivative[1][f] = g Out[1]= g In[2]:= f'[x] Out[2]= g[x] See the doc page tutorial/DefiningDerivatives