public void Test03()
{
//x + y = 1, -y->max
var A = new[] { new[] { 1m, 1 } };
var b = new[] { 1m };
var c = new[] { 0m, -1 };
foreach (var r in Rules_)
{
var eq = new SimplexProblem(A, b, c) {PivotingRule = r};
var res = eq.Solv();
Assert.That(res, Is.EqualTo(SimplexResult.Optimal));
var x = eq.Solution;
Assert.That(x[0], Is.EqualTo(1));
Assert.That(x[1], Is.EqualTo(0));
Assert.That(eq.Value, Is.EqualTo(0m));
}
}
public void Test06()
{
//3x1 + 4x2 - x3 = 6, x1 + 3x2 = 3, 2x1 + x2 + x4 = 4 4x1 + 16x2->max
var A = new[]
{
new[] { 3m, 4, -1, 0 },
new[] { 1m, 3, 0, 0 },
new[] { 2m, 1, 0, 1 }
};
var b = new[] { 6m, 3, 4 };
var c = new[] { 4m, 16, 0, 0 };
foreach (var r in Rules_)
{
var eq = new SimplexProblem(A, b, c) {PivotingRule = r};
var res = eq.Solv();
Assert.That(res, Is.EqualTo(SimplexResult.Optimal));
var x = eq.Solution;
Assert.That(Math.Round(x[0], 2), Is.EqualTo(6m / 5m));
Assert.That(Math.Round(x[1], 2), Is.EqualTo(3m / 5m));
Assert.That(x[2], Is.EqualTo(0m));
Assert.That(Math.Round(x[3], 2), Is.EqualTo(1m));
Assert.That(Math.Round(eq.Value, 2), Is.EqualTo(72m / 5m));
}
}
public void Test05()
{
// 2x1 + x2 + s1 = 64, x1 + 3x2 + s2 = 72, x2 + s3 = 20, 4x1 + 6x2->max
var A = new[]
{
new[] { 2m, 1, 1, 0, 0 },
new[] { 1m, 3, 0, 1, 0 },
new[] { 0m, 1, 0, 0, 1 }
};
var b = new[] { 64m, 72, 20 };
var c = new[] { 4m, 6, 0, 0, 0 };
foreach (var r in Rules_)
{
var eq = new SimplexProblem(A, b, c) {PivotingRule = r};
var res = eq.Solv();
Assert.That(res, Is.EqualTo(SimplexResult.Optimal));
var x = eq.Solution;
Assert.That(x[0], Is.EqualTo(24m));
Assert.That(x[1], Is.EqualTo(16m));
Assert.That(x[2], Is.EqualTo(0m));
Assert.That(x[3], Is.EqualTo(0m));
Assert.That(x[4], Is.EqualTo(4m));
Assert.That(eq.Value, Is.EqualTo(192m));
}
}
