public void MulTest()
{
var f1 = Fix.CreateDecimal(12, 25, 2);
var f2 = Fix.CreateDecimal(123, 75, 2);
FixAssert.AssertEquals(f1 * f2, 12.25f * 123.75f, Epsilon);
}
public void SqrtAverageDeviationTest()
{
var maxDiff = double.MinValue;
for (var i = 0; i <= 1000; i++)
{
var diff = FixMath.Sqrt(i).AsDouble - Math.Sqrt(i);
maxDiff = Math.Max(maxDiff, Math.Abs(diff));
}
FixAssert.AssertEquals(maxDiff, 0, Epsilon);
}
public void AtanAverageDeviationTest()
{
var totalDiff = 0.0;
var maxDiff = double.MinValue;
for (var i = 0; i < 100; i++)
{
for (var j = 0; j < 100; j++)
{
var diff = (double)FixMath.Atan2(i, j) - Math.Atan2(i, j);
totalDiff += diff;
maxDiff = Math.Max(maxDiff, Math.Abs(diff));
}
}
// Max & Average deviation
FixAssert.AssertEquals(maxDiff, 0, 0.012f);
FixAssert.AssertEquals(totalDiff / 360, 0, 0.008f);
}
public void AsinAverageDeviationTest()
{
var totalDiff = 0.0;
var maxDiff = double.MinValue;
for (var i = 0; i < 1000; i++)
{
var fixValue = Fix.Ratio(i, 1000);
var doubleValue = i / 1000.0;
var diff = Math.Abs((double)FixMath.Asin(fixValue) - Math.Asin(doubleValue));
totalDiff += diff;
maxDiff = Math.Max(maxDiff, Math.Abs(diff));
}
// Max & Average deviation
FixAssert.AssertEquals(maxDiff, 0, 0.005f);
FixAssert.AssertEquals(totalDiff / 360, 0, 0.002f);
}
public void SinAverageDeviationTest()
{
var totalDiff = 0.0;
var maxDiff = double.MinValue;
for (var i = 0; i < 3600; i++)
{
var fixAngle = FixMath.Pi * i / 1800;
var doubleAngle = Math.PI * i / 1800.0;
var diff = Math.Abs((double)FixMath.Sin(fixAngle) - Math.Sin(doubleAngle));
totalDiff += diff;
maxDiff = Math.Max(maxDiff, Math.Abs(diff));
}
// Max & Average deviation
FixAssert.AssertEquals(maxDiff, 0, 0.019f);
FixAssert.AssertEquals(totalDiff / 360, 0, 0.07f);
}
public void CreateDecimalTest()
{
var fix = Fix.CreateDecimal(1, 12, 2);
FixAssert.AssertEquals(fix, 1.12f, Epsilon);
}
public void RatioTest()
{
var fix = Fix.Ratio(1, 2);
FixAssert.AssertEquals(fix, 0.5f, Epsilon);
}
public void FixVec2MagnitudeTest()
{
var fixVec2 = new FixVec2(2, 1);
FixAssert.AssertEquals(fixVec2.Magnitude, (float)Math.Sqrt(2 * 2 + 1 * 1), Epsilon);
}