Re: Number of monominals
- To: mathgroup at smc.vnet.net
- Subject: [mg87078] Re: Number of monominals
- From: Alexey Popkov <popkov at gmail.com>
- Date: Mon, 31 Mar 2008 02:04:05 -0500 (EST)
- References: <fsnbd3$d8q$1@smc.vnet.net>
On Mar 30, 10:19 am, Patrick Klitzke <philologo... at gmx.de> wrote: > According to the documentation, the function Length[expr] gives the > number of elements in expr. > Also "The length of a symbol is 0". > You have to write it as a list, if you want the expression to be counted. > Length[{f[1]}] > > The other inputs are working, because Length counts the elements of the > function Plus: > > In[1]:=Length[Plus[f[1],f[2],f[3]]] > Out[1]:=3 > OK! > In[2]:=Length[Plus[f[1],f[2]]] > Out[2]:=2 > In[3]:=Length[f[1]] > Out[3]:=0 > > I hope, that I could answer your question. > > Patrick Hello, I can not reproduce such behavour in Mathematica 5.2 and 6.02. How do you do that? In[1]:= Length[f[1]] Out[1]= 1