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Rex
Posts:
23
Registered:
10/13/10


How to easily set up all coefficients to be positive in Solving an integer equation using Mathematica?
Posted:
Jan 15, 2012 9:39 PM


Given a vector `A=[a_1, a_2, a_3,...,a_n]`, where a_i are integers, now solving an equation `?a_i * x_i=0` with all x_i>=0, and x_i to be integers.
Using Mathematica, we can write some code like this `Solve[A . Table[x[i], {i, n}] = 0 && Table[x[i] > 0, {i, n}], Integers]`
But the conditions above `Table[x[i] > 0` is not rightly coded. That should be `x[1]>0 && x[2]>0 && x[3]>0 &&...x[n]>0` Is there any easy way to write such code?



