public void SmallestNormalizedNumberSqrt()
{
var number = BitConverter.Int32BitsToSingle(0x00800000);
Assert.AreEqual(1.17549435E-38f, number);
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(8.92591841E+18f, gama);
}
public void SqrtOneSixteenthTest()
{
var number = 0.0625f;
Assert.AreEqual("1.00000000 * 2^(-4)", Float754.FloatToString(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(4.0f, gama, 0.13f);
}
public void LargestDenormalizedNumberSqrt()
{
var number = BitConverter.Int32BitsToSingle(0x007FFFFF);
Assert.AreEqual(1.17549421E-38f, number);
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(8.92591896E+18f, gama);
}
public void MiddleDenormalizedNumberSqrt()
{
var number = BitConverter.Int32BitsToSingle(0x00400000);
Assert.AreEqual(5.87747175E-39f, number);
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(1.09343078E+19f, gama);
}
public void SmallestDenormalizedNumberSqrt()
{
var number = BitConverter.Int32BitsToSingle(0x00000001);
Assert.AreEqual(1.40129846E-45f, number);
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(1.32401508E+19f, gama);
}
public void SqrtQuarterTest()
{
var number = 0.25f;
Assert.AreEqual("1.00000000 * 2^(-2)", Float754.FloatToString(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(2.0f, gama, 0.065f);
}
public void SqrtHalfTest()
{
var number = 0.5f;
Assert.AreEqual("1.00000000 * 2^(-1)", Float754.FloatToString(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(1.414213562f, gama, 0.022f);
}
public void NotANumberTest()
{
var number = float.NaN;
Assert.IsTrue(float.IsNaN(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(1.55459938E+19f, gama);
}
public void PositiveInfinityTest()
{
var number = float.PositiveInfinity;
Assert.IsTrue(float.IsInfinity(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(5.24618333E-20f, gama);
}
public void Sqrt256Test()
{
var number = 256.0f;
Assert.AreEqual("1.00000000 * 2^(8)", Float754.FloatToString(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(0.0625f, gama, 0.0025);
}
public void LargestNormalizedNumberSqrt()
{
var number = BitConverter.Int32BitsToSingle(0x7F7FFFFF);
Assert.AreEqual(3.40282347E+38f, number);
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(5.24618366E-20f, gama);
}
public void Sqrt16Test()
{
var number = 16.0f;
Assert.AreEqual("1.00000000 * 2^(4)", Float754.FloatToString(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(0.25f, gama, 0.012);
}
public void Sqrt4Test()
{
var number = 4.0f;
Assert.AreEqual("1.00000000 * 2^(2)", Float754.FloatToString(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(0.5f, gama, 0.017f);
}
public void Sqrt2Test()
{
var number = 2.0f;
Assert.AreEqual("1.00000000 * 2^(1)", Float754.FloatToString(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(0.7071067811f, gama, 0.011f);
}
public void Sqrt1Test()
{
var number = 1.0f;
Assert.AreEqual("1.00000000 * 2^(0)", Float754.FloatToString(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(1.0f, gama, 0.0323f);
}
public void ZeroSqrt()
{
var number = 0.0f;
var bits = Float754.FloatToString(number);
Assert.AreEqual("0.00000000 * 2^(-126)", bits);
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual(1.32401508E+19f, gama);
}
public void Test()
{
var number = 256.0f;
Assert.AreEqual("1.00000000 * 2^(8)", Float754.FloatToString(number));
var gama = Float754.FastInvSqrtFloat(number);
Assert.AreEqual("1.00000000 * 2^(-4)", Float754.FloatToString(0.0625f));
var y = BitConverter.Int32BitsToSingle(0x5f3759df);
Assert.AreEqual("1.43243015 * 2^(63)", Float754.FloatToString(y));
Assert.AreEqual("1.93550003 * 2^(-5)", Float754.FloatToString(gama));
Assert.AreEqual(0.0625f, gama, 0.01);
}