}
@Test(dependsOnMethods = { "testRationalExpressions" })
public void testRealExpressions() {
Expression evaluated;
RealNumber r0d1 = R.create(0.1);
RealNumber div = R.create(1.0/10);
Subtraction diff = new Subtraction(r0d1, div);
RealNumber zero = R.create(0.0);
Equality zeroTest = new Equality(diff, zero);
evaluated = zeroTest.evaluate();
System.out.printf("%s : %s%n", zeroTest, evaluated);
assertEquals(evaluated, TruthValue.True);