Re: IsExact
- To: mathgroup at smc.vnet.net
- Subject: [mg80551] Re: [mg80523] IsExact
- From: Sseziwa Mukasa <mukasa at gmail.com>
- Date: Sun, 26 Aug 2007 02:58:05 -0400 (EDT)
- References: <200708240600.CAA16662@smc.vnet.net>
On Aug 24, 2007, at 2:00 AM, carlos at colorado.edu wrote: > Let c be a 1D list of scalar coefficients, numeric or symbolic, > real or complex. No entry is a list. Examples: > > ClearAll[n,x,y,a,a1,a2,b,r]; > c1={1,2*I/5,E^(25*n),3/4+I,Cos[n*x*Pi],y*Sqrt[-5]}; > c2={a/b,r+2/5,a1,,,,,a2}; > c3={1.5,0,Sqrt[3],0,4}; > c4={(r+0.5)/3,3/7,3+Sin[4*x*y]}; > c5={1,2,3,4,5,6}+0.0; > c6={N[x]}; > > I need a function IsExact[c] that returns False if > at least one entry of c is floating, or if it contains one > floating number; else True. For example, tests on > c1 and c2 should return True; the others False. > > Any simple way to implement this? It should work on V.5. What is your definition of a floating number? c6 contains no numbers for example so it should be exact, likewise for c4. Regards, Ssezi
- References:
- IsExact
- From: carlos@colorado.edu
- IsExact