Microsoft DirectX 9.0 SDK Update (October 2004)

Quaternion.Ln Method

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Note: This documentation is preliminary and is subject to change.

Calculates the natural logarithm.

Overload List

public void Ln();
public static Quaternion Ln(Quaternion);

Remarks

The Ln method works only for unit quaternions.

A unit quaternion is defined by the following example.

Q == (cos(theta), sin(theta) * v) where |v| = 1
The natural logarithm of Q is ln(Q) = (0, theta * v)

See Also


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