Examples with DifferenceArithmeticTheory com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory used on opensource projects

Example 36 with DifferenceArithmeticTheory

use of com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory in project aic-expresso by aic-sri-international.

the class SummationOnDifferenceArithmeticAndPolynomialStepSolverTest method polynomialBodyWithADifferentVariableTest.

@Test
public void polynomialBodyWithADifferentVariableTest() {
    TheoryTestingSupport theoryTestingSupport = TheoryTestingSupport.make(makeRandom(), new DifferenceArithmeticTheory(true, true));
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    Expression variable;
    String constraintString;
    Expression body;
    Expression expected;
    variable = parse("I");
    body = parse("I^2 - J + 1");
    constraintString = "true";
    expected = parse("-(5*J) + 35");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I != 3";
    expected = parse("-(4*J) + 25");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I < 3";
    expected = parse("-(3*J) + 8");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "false";
    expected = parse("0");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I > 3 and I < 3";
    expected = parse("0");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I > 1 and I < 3 and I != 2";
    expected = parse("0");
    runTest(variable, constraintString, body, expected, context);
}

Example 37 with DifferenceArithmeticTheory

use of com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory in project aic-expresso by aic-sri-international.

the class SummationOnDifferenceArithmeticAndPolynomialStepSolverTest method polynomialBodyAndConstraintWithADifferentVariableTest.

@Test
public void polynomialBodyAndConstraintWithADifferentVariableTest() {
    TheoryTestingSupport theoryTestingSupport = TheoryTestingSupport.make(makeRandom(), new DifferenceArithmeticTheory(true, true));
    Context context = theoryTestingSupport.makeContextWithTestingInformation();
    Expression variable;
    String constraintString;
    Expression body;
    Expression expected;
    variable = parse("I");
    body = parse("I^2 - J + 1");
    constraintString = "I != J";
    expected = parse("-(J^2) -(4*J) + 34");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I <= J and I != J";
    expected = parse("(1/3 * J ^ 3 - 1.5 * J ^ 2) + 7/6 * J");
    runTest(variable, constraintString, body, expected, context);
    constraintString = "I < J and I > J";
    expected = parse("0");
    runTest(variable, constraintString, body, expected, context);
}

Example 38 with DifferenceArithmeticTheory

use of com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory in project aic-expresso by aic-sri-international.

the class TupleRewriterTest method testTupleValuedFreeVariablesSimplifier.

@Test
public void testTupleValuedFreeVariablesSimplifier() {
    Context tupleTheoryContext = new TrueContext(new CompoundTheory(new DifferenceArithmeticTheory(false, false), new TupleTheory()));
    TupleType nTupleType = new TupleType(new IntegerInterval(1, 10), new IntegerInterval(1, 10));
    tupleTheoryContext = (Context) GrinderUtil.extendRegistryWith(map("N", nTupleType.toString()), Arrays.asList(nTupleType), tupleTheoryContext);
    TupleValuedFreeVariablesSimplifier simplifier = new TupleValuedFreeVariablesSimplifier();
    Expression expression = parse("sum( {{ (on X in 1..10) if N = (2, X) then 2 else 3 }} )");
    Expression simplified = simplifier.apply(expression, tupleTheoryContext);
    Assert.assertEquals(parse("if get(N, 1) = 2 then 29 else 30"), simplified);
}

Example 39 with DifferenceArithmeticTheory

use of com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory in project aic-expresso by aic-sri-international.

the class SymbolicShell method makeTheory.

private static Theory makeTheory() {
    Theory theory = new CompoundTheory(new EqualityTheory(false, true), new DifferenceArithmeticTheory(false, false), new LinearRealArithmeticTheory(false, false), new TupleTheory(), new PropositionalTheory(), new BruteForceFunctionTheory());
    theory = new BruteForceFallbackTheory(theory);
    return theory;
}

Example 40 with DifferenceArithmeticTheory

use of com.sri.ai.grinder.theory.differencearithmetic.DifferenceArithmeticTheory in project aic-expresso by aic-sri-international.

the class ExpressionStepSolverToLiteralSplitterStepSolverAdapterTest method testCompoundTheoryWithoutDifferenceArithmeticWithRandomDisjunctiveFormulas.

@Test
public void testCompoundTheoryWithoutDifferenceArithmeticWithRandomDisjunctiveFormulas() {
    TheoryTestingSupport theoryTestingSupport = TheoryTestingSupport.make(makeRandom(), new CompoundTheory(new EqualityTheory(false, true), new DifferenceArithmeticTheory(false, true), new PropositionalTheory()));
    runRandomDisjunctiveFormulasTest(theoryTestingSupport);
}