Re: Question
- To: mathgroup at smc.vnet.net
- Subject: [mg74826] Re: Question
- From: P_ter <peter_van_summeren at yahoo.co.uk>
- Date: Fri, 6 Apr 2007 04:27:53 -0400 (EDT)
Hello Daniel, thanks. It is quite a decision to apply the head to a list when talking about parts. I would expect just a list of parts. Still I am not able to predict what happens to: Lambda0[[{1, 2, 3}, 1, {1, 2, 3}, 1]] which gives: Lambda0[Lambda2[1, 1, 1], Lambda2[2, 2, 2], Lambda2[3, 3, 3]] What confuses me is: Lambda0[[{1, 2, 3}, 1, {1, 2, 3}]] which gives: Lambda0[Lambda2[Lambda3[1, 1, 1], Lambda3[1, 1, 2], Lambda3[1, 1, 3]], Lambda2[Lambda3[2, 1, 1], Lambda3[2, 1, 2], Lambda3[2, 1, 3]], Lambda2[Lambda3[3, 1, 1], Lambda3[3, 1, 2], Lambda3[3, 1, 3]]] So, I do not understand anything about these manipulations. Can anyone explain these results? In one way or another I am wrongly focussed. with frienldy greetings, Peter van Summeren