Re: What's the matter with this?

*To*: mathgroup at smc.vnet.net*Subject*: [mg56153] Re: What's the matter with this?*From*: Bill Rowe <readnewsciv at earthlink.net>*Date*: Sat, 16 Apr 2005 03:53:54 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

On 4/15/05 at 4:48 AM, stevebg at adelphia.net (Steve Gray) wrote: >I have a list >intertemp[[1]] = {{14, 17, {0.7929, 0.4366}, {2.8146, 11.3986}} The curly braces above are not balanced. Did you mean {14, 17, {0.7929, 0.4366}, {2.8146, 11.3986}} ? >and a simple function >modxx[axx_] := axx[[2]] = Mod[axx[[2]], 14, 1]; >When I do modxx[intertemp[[1]]] I get this: >Set::setps: {14, 17, {0.792902, <<19>>}, {2.81469, 11.3986}} in >assignment of part is not a symbol. >What does this mean and how can I do it correctly? I must be making >a very simple error. I want the 17 to become 3 with no other >changes. Assuming there is an extrac "{" in what you posted the following does what you want: In[1]:= x = {14, 17, {0.7929, 0.4366}, {2.8146, 11.3986}}; In[2]:= modxx[axx_] := ReplacePart[axx, Mod[axx[[2]], 14, 1], 2] In[3]:= x = modxx[x] Out[3]= {14, 3, {0.7929, 0.4366}, {2.8146, 11.3986}} -- To reply via email subtract one hundred and four