Recursion
- To: mathgroup at smc.vnet.net
- Subject: [mg25925] Recursion
- From: Carlos Baeta Silva <carlos.silva at tcontas.pt>
- Date: Thu, 9 Nov 2000 03:04:23 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Hello!
1. Someone can tell me how I can define a function (using recursion) that
apllies to a list of this kind:
{{"poiu", 12},{"asdfghjkl",5},{"qwerty",18},{"zxcvbnm",8}}
returns { { {"asdfghjkl",5},{"zxcvbnm",8} }, { {"qwerty",18} },{"poiu",12}
} } values <9.5 in one sublist and > in the other.
And apllies to {} return {{},{}}
I made this but I can put the sublists inside the empty brackets:
<<...>>
<<...>>
2. Other function (using recursion too) that returns the parts of a list:
aplies to this {} returns {{}}
to {{1}} returns {{1},{}} or {{},{1}}
to {{1,2}} returns {{1,2},{1},{2},{}}
Thank you very much!