public void CreateDecimalTest()
{
var d = Dec.Create(0.5m);
Assert.AreEqual(d, Literal.Create(1) / Literal.Create(2));
Assert.AreEqual(d.ToString(), "0.5");
}
public void CreateDecimalTest2()
{
var d = Dec.Create(0.33333333333333m);
Assert.AreEqual(d, Literal.Create(1) / Literal.Create(3));
Assert.AreEqual(d.ToString(), "0.33333333333333");
}
public void Beta1Formula()
{
var actual = ExprParser.ParseOrThrow("0.85-(0.05/7)*(fᐠ_c-28)");
var expected = Dec.Create(0.85m) - (Dec.Create(0.05m) / Literal.Create(7)) * (new Identifier("fᐠ_c") - Literal.Create(28));
Assert.AreEqual(expected, actual);
Assert.AreEqual("0.85-((0.05/7)×(fᐠ_c-28))", actual.ToString());
var substiResult = actual.Substitute(new Identifier("fᐠ_c"), 32).Simplify();
Assert.AreEqual(substiResult, DivideOp.Create(23, 28));
if (substiResult.TryToDouble(out var val))
{
Assert.AreEqual(0.8214, val, 0.0001);
}
else
{
Assert.Fail($"{substiResult} is not a double");
}
}
public static MathStatement ToDecimal2(string val) => decimal.TryParse(val, out decimal result) ? Dec.Create(result) : new Zero();
public MathStatement Substitute(Expr current, decimal replacement)
{
return(Substitute(current, Dec.Create(replacement)));
}