Why this cannot be solved
- To: mathgroup at smc.vnet.net
- Subject: [mg116153] Why this cannot be solved
- From: olfa <olfa.mraihi at yahoo.fr>
- Date: Thu, 3 Feb 2011 05:32:54 -0500 (EST)
Hi Mathematica community,
System 1)
Reduce[Max[e, s + a[i]] == Max[c, d + aP[iP]] && d == s - a[n]
+Sum[a[j],{j,i,n}] &&
aP == a && iP == n, {aP, iP, d, c}, Reals]
this gives:
Reduce::nsmet: This system cannot be solved with the methods available
to Reduce.
System 2)
Reduce[Max[e, s + a[i]] == Max[c, d + aP[iP]] && d == s - a[n]
+Sum[a[j],{j,i,n}] , { d, c}, Reals]
this gives solutions.
the only difference between them is the variables aP and iP and their
respective equations.
What I didn't understand is why the first system cannot be solved
although I have given values for iP and aP inside of it?
thank you.