Re: IsIntegerOrFloat
- To: mathgroup at smc.vnet.net
- Subject: [mg87063] Re: [mg87011] IsIntegerOrFloat
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Sun, 30 Mar 2008 01:19:04 -0500 (EST)
- References: <200803290921.EAA16390@smc.vnet.net>
One possibility is: IsIntegerOrFloat[expr_] := VectorQ[expr, NumberQ[#] && (Head[#] =!= Rational) && (Head[#] =!= Complex) &] Then IsIntegerOrFloat[{2.3, 5}] True IsIntegerOrFloat[{2.3, 1/2}] False and so on. Andrzej Kozlowski On 29 Mar 2008, at 10:21, carlos at colorado.edu wrote: > Thanks to all who replied to my previous questions. Those functions > work > fine now. Here is another question - I apologize if it has been > asked before. > I need a function > > IsIntegerOrFloat[expr] > > that returns True if expr, which is generally a flat list, contains > only integers or floating point numbers, and False otherwise. > Rational numbers such as 1/2 are considered symbolic for this test; > so is > \[Pi] or Sqrt[5]. Appearance of any symbol, as in 2.0*a+3.5, makes > it False. > As in previous questions, this should work on versions >=4.0. > > Use: unified printing of simulation data structures in table formats. > Expressions containing only integers or floats are filtered through > PaddedForm[] and ToString[], others through Symbol[]. The end > result (a flat table of strings) is filtered through TableForm with > appropriate options. >
- References:
- IsIntegerOrFloat
- From: carlos@Colorado.EDU
- IsIntegerOrFloat