/// <summary>
/// Divides a quaternion by a scalar.
/// </summary>
/// <param name="q">A <see cref="QuaternionD"/> instance.</param>
/// <param name="s">A scalar.</param>
/// <returns>A <see cref="QuaternionD"/> instance to hold the result.</returns>
public static QuaternionD operator/(QuaternionD q, double s)
{
return(QuaternionD.Divide(q, s));
}
/// <summary>
/// Divides a scalar by a quaternion.
/// </summary>
/// <param name="q">A <see cref="QuaternionD"/> instance.</param>
/// <param name="s">A scalar.</param>
/// <returns>A <see cref="QuaternionD"/> instance to hold the result.</returns>
public static QuaternionD operator/(double s, QuaternionD q)
{
return(QuaternionD.Multiply(q, 1 / s));
}
/// <summary>
/// Multiplies quaternion <paramref name="a"/> by quaternion <paramref name="b"/>.
/// </summary>
/// <param name="a">A <see cref="QuaternionD"/> instance.</param>
/// <param name="b">A <see cref="QuaternionD"/> instance.</param>
/// <returns>A new <see cref="QuaternionD"/> containing the result.</returns>
public static QuaternionD operator*(QuaternionD a, QuaternionD b)
{
return(QuaternionD.Multiply(a, b));
}
/// <summary>
/// Multiplies a quaternion by a scalar.
/// </summary>
/// <param name="q">A <see cref="QuaternionD"/> instance.</param>
/// <param name="s">A scalar.</param>
/// <returns>A <see cref="QuaternionD"/> instance to hold the result.</returns>
public static QuaternionD operator*(QuaternionD q, double s)
{
return(QuaternionD.Multiply(q, s));
}
/// <summary>
/// Subtracts a quaternion from a quaternion.
/// </summary>
/// <param name="a">A <see cref="QuaternionD"/> instance.</param>
/// <param name="b">A <see cref="QuaternionD"/> instance.</param>
/// <returns>A new <see cref="QuaternionD"/> instance containing the difference.</returns>
public static QuaternionD operator-(QuaternionD a, QuaternionD b)
{
return(QuaternionD.Subtract(a, b));
}
/// <summary>
/// Adds two quaternions.
/// </summary>
/// <param name="a">A <see cref="QuaternionD"/> instance.</param>
/// <param name="b">A <see cref="QuaternionD"/> instance.</param>
/// <returns>A new <see cref="QuaternionD"/> instance containing the sum.</returns>
public static QuaternionD operator+(QuaternionD a, QuaternionD b)
{
return(QuaternionD.Add(a, b));
}
/// <summary>
/// Calculates the dot product of two quaternions.
/// </summary>
/// <param name="a">A <see cref="QuaternionD"/> instance.</param>
/// <param name="b">A <see cref="QuaternionD"/> instance.</param>
/// <returns>The dot product value.</returns>
public static double DotProduct(QuaternionD a, QuaternionD b)
{
return(a.W * b.W + a.X * b.X + a.Y * b.Y + a.Z * b.Z);
}
/// <summary>
/// Subtracts a quaternion from a quaternion.
/// </summary>
/// <param name="a">A <see cref="QuaternionD"/> instance.</param>
/// <param name="b">A <see cref="QuaternionD"/> instance.</param>
/// <returns>A new <see cref="QuaternionD"/> instance containing the difference.</returns>
public static QuaternionD Subtract(QuaternionD a, QuaternionD b)
{
return(new QuaternionD(a.W - b.W, a.X - b.X, a.Y - b.Y, a.Z - b.Z));
}
/// <summary>
/// Adds two quaternions.
/// </summary>
/// <param name="a">A <see cref="QuaternionD"/> instance.</param>
/// <param name="b">A <see cref="QuaternionD"/> instance.</param>
/// <returns>A new <see cref="QuaternionD"/> instance containing the sum.</returns>
public static QuaternionD Add(QuaternionD a, QuaternionD b)
{
return(new QuaternionD(a.W + b.W, a.X + b.X, a.Y + b.Y, a.Z + b.Z));
}