IsExact
- To: mathgroup at smc.vnet.net
- Subject: [mg80523] IsExact
- From: carlos at colorado.edu
- Date: Fri, 24 Aug 2007 02:00:28 -0400 (EDT)
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.
Thanks.
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