I’ve no idea how to solve in equation in Integers
Reduce[Log[2, 3 x + 5 y - 6 z + 3] > z^2 - 9 z + 16, {x,y,z}, Integers]
I’ve no idea how to solve in equation in Integers
Reduce[Log[2, 3 x + 5 y - 6 z + 3] > z^2 - 9 z + 16, {x,y,z}, Integers]
The solution in reals is simple enough:
Reduce[Log[2, 3 x + 5 y - 6 z + 3] > z^2 - 9 z + 16,
y, Reals] // Simplify
y > 1/5 (-3 + 2^(16 - 9 z + z^2) - 3 x + 6 z)
Thx for answer, but there are 3 variables and I have to find integer solutions
Take arbitrary integers x,z and you get an easy inequality for integer y.
At least there are solutions, found by trial and error and given as { x, y, z }:
sol = {{-3, 5, 2}, {-3, 5, 3}, {-2, 4, 2}, {-2, 5, 2}, {-2, 5,
3}, {-1, 4, 2}, {-1, 4, 3}, {-1, 5, 2}, {-1, 5, 3}, {-1, 5, 4}, {0,
3, 2}, {0, 4, 2}, {0, 4, 3}, {0, 5, 2}, {0, 5, 3}, {0, 5, 4}, {1,
3, 2}, {1, 3, 3}, {1, 4, 2}, {1, 4, 3}, {1, 4, 4}, {1, 5, 2}, {1,
5, 3}, {1, 5, 4}, {1, 5, 5}, {2, 2, 2}, {2, 2, 3}, {2, 3, 2}, {2,
3, 3}, {2, 4, 2}, {2, 4, 3}, {2, 4, 4}, {2, 5, 2}, {2, 5, 3}, {2,
5, 4}, {2, 5, 5}, {3, 1, 2}, {3, 2, 2}, {3, 2, 3}, {3, 3, 2}, {3,
3, 3}, {3, 3, 4}, {3, 4, 2}, {3, 4, 3}, {3, 4, 4}, {3, 4, 5}, {3,
5, 2}, {3, 5, 3}, {3, 5, 4}, {3, 5, 5}, {4, 1, 2}, {4, 1, 3}, {4,
2, 2}, {4, 2, 3}, {4, 2, 4}, {4, 3, 2}, {4, 3, 3}, {4, 3, 4}, {4,
4, 2}, {4, 4, 3}, {4, 4, 4}, {4, 4, 5}, {4, 5, 2}, {4, 5, 3}, {4,
5, 4}, {4, 5, 5}, {5, 0, 2}, {5, 1, 2}, {5, 1, 3}, {5, 2, 2}, {5,
2, 3}, {5, 2, 4}, {5, 3, 2}, {5, 3, 3}, {5, 3, 4}, {5, 3, 5}, {5,
4, 2}, {5, 4, 3}, {5, 4, 4}, {5, 4, 5}, {5, 5, 2}, {5, 5, 3}, {5,
5, 4}, {5, 5, 5}}
(Log[2, 3 #1 + 5 #2 - 6 #3 + 3] > #3^2 - 9 #3 + 16) & @@@ sol