public void TestWithSimplified() {
var pc = new EContext(0, ERounding.HalfUp, 0, 5, true);
Assert.IsFalse(pc.IsSimplified);
pc = pc.WithSimplified(true);
Assert.IsTrue(pc.IsSimplified);
pc = pc.WithSimplified(false);
Assert.IsFalse(pc.IsSimplified);
}