public void Unimodal_Square_Optimum()
{
var f = new SquareTestFunction().FunctionValueAnalysisFor1D();
var a = f.ValueWithDerivative(-1);
var b = f.ValueWithDerivative(2);
var point = new NumberFunctionOptimizationSearchRange(a: a, b: b);
point.BorderSmaller.X.AssertIsEqualTo(2);
point.BorderSmaller.Y.AssertIsEqualTo(4);
_method.MoveNext(in f, ref point);
point.BorderSmaller.X.AssertIsEqualTo(1);
point.BorderSmaller.Y.AssertIsEqualTo(3);
point.IsEmptyRange.AssertIsTrue();
try
{
_method.MoveNext(in f, ref point);
throw new Exception("I should never get here");
}
catch (AssertException)
{
// all is fine.
}
}
public void Unimodal_Square_Optimum()
{
var f = new SquareTestFunction().FunctionValueAnalysisFor1D();
var a = f.ValueWithDerivative(0);
var b = f.ValueWithDerivative(3);
NumberFunctionPointWithDerivative actual = _optimizer.MoveNext(f, in a, b.X, out uint complexity);
actual.X.AssertIsEqualTo(1);
complexity.AssertIsEqualTo(1u);
}
public void Unimodal_Square_NegativeDerivative_Optimum()
{
var f = new SquareTestFunction().FunctionValueAnalysisFor1D();
var a = f.ValueWithDerivative(1);
var b = f.ValueWithDerivative(-2);
var point = new NumberFunctionOptimizationSearchRange(a: a, b: b);
point.BorderSmaller.X.AssertIsEqualTo(1);
ushort i = _method.FindOptimal(in f, ref point);
point.BorderSmaller.X.AssertIsEqualTo(1);
i.AssertIsEqualTo(24);
}
public void Unimodal_Square_AtOptimum()
{
var f = new SquareTestFunction().FunctionValueAnalysisFor1D();
var a = f.ValueWithDerivative(1);
var b = f.ValueWithDerivative(2);
try
{
_optimizer.MoveNext(f, in a, b.X, out _);
throw new Exception("I should never get here");
}
catch (AssertException)
{
// all is fine
}
}
public void Unimodal_Square_NegativeDerivative_Optimum()
{
var f = new SquareTestFunction().FunctionValueAnalysisFor1D();
var a = f.ValueWithDerivative(1);
Number b = -2;
ushort i = _method.FindOptimal(in f, a, b, out NumberFunctionPointWithDerivative solution);
solution.X.AssertIsEqualTo(1);
i.AssertIsEqualTo(24);
}