Talk:Quaternion - Revision history

Ahruman: Talk:Quaternions moved to Talk:Quaternion: Singular is more general.

2007-04-07T15:20:03Z

Talk:Quaternions moved to Talk:Quaternion: Singular is more general.

2006-09-22T08:14:23Z

bump, bump

2006-09-12T17:36:56Z

Where does the 180 deg rotation go???

2006-09-12T17:34:03Z

more calculus confusion

2006-09-12T17:29:02Z

hey! Quat the ...?

2006-09-12T17:28:44Z

hey! Quat the ...?

2006-09-12T17:24:35Z

2006-09-12T17:14:18Z

2006-09-12T17:00:39Z

2006-09-12T17:00:23Z

← Older revision		Revision as of 08:14, 22 September 2006
Line 33:		Line 33:

	--[[User:Arexack\|Arexack]] 17:29, 12 September 2006 (UTC)		--[[User:Arexack\|Arexack]] 17:29, 12 September 2006 (UTC)
		+
		+	bump!
		+	(such activity! ;))

@@ Line 30: / Line 30: @@
 edit: two times 90 degrees z followed by a 90 deg y renders:
-Q1[0 0 0 1] * Q2[0 0 0 1] (=[2 0 0 2])* Q3[1 0 1 0] = Qt[4 0 4 0]
+Q1[0 0 0 1] * Q2[0 0 0 1] (=[2 0 0 2])* Q3[1 0 1 0] = Qt[4 0 4 0] = [1 0 1 0] !!!
 --[[User:Arexack|Arexack]] 17:29, 12 September 2006 (UTC)

← Older revision		Revision as of 17:34, 12 September 2006
Line 27:		Line 27:

	(eg. Q1[0 0 0 1] * Q2[1 0 1 0] = Qt[1 0 1 0])		(eg. Q1[0 0 0 1] * Q2[1 0 1 0] = Qt[1 0 1 0])
		+
		+	edit: two times 90 degrees z followed by a 90 deg y renders:
		+
		+	Q1[0 0 0 1] * Q2[0 0 0 1] (=[2 0 0 2])* Q3[1 0 1 0] = Qt[4 0 4 0]

	--[[User:Arexack\|Arexack]] 17:29, 12 September 2006 (UTC)		--[[User:Arexack\|Arexack]] 17:29, 12 September 2006 (UTC)

← Older revision		Revision as of 17:29, 12 September 2006
Line 27:		Line 27:

	(eg. Q1[0 0 0 1] * Q2[1 0 1 0] = Qt[1 0 1 0])		(eg. Q1[0 0 0 1] * Q2[1 0 1 0] = Qt[1 0 1 0])
−	--[[User:Arexack\|Arexack]] 17:28, 12 September 2006 (UTC)
		+
		+	--[[User:Arexack\|Arexack]] 17:29, 12 September 2006 (UTC)

← Older revision		Revision as of 17:28, 12 September 2006
Line 23:		Line 23:
	Which looked to be working ok in-game. But according to the vector approach I probably ended up with a bigger z-angle than I intended.		Which looked to be working ok in-game. But according to the vector approach I probably ended up with a bigger z-angle than I intended.
	--[[User:Arexack\|Arexack]] 16:55, 12 September 2006 (UTC)		--[[User:Arexack\|Arexack]] 16:55, 12 September 2006 (UTC)
		+
		+	Why can I not multiply a 180degree turn with another?
		+
		+	(eg. Q1[0 0 0 1] * Q2[1 0 1 0] = Qt[1 0 1 0])
		+	--[[User:Arexack\|Arexack]] 17:28, 12 September 2006 (UTC)

← Older revision	Revision as of 15:20, 7 April 2007
(No difference)

← Older revision		Revision as of 17:24, 12 September 2006
Line 19:		Line 19:
	(That would be the vector 1x,1y,0z ?)		(That would be the vector 1x,1y,0z ?)

		+	I ended up with Q = 0.707 0.0 0.707 0.383 though.(x,z pos or negative depending on up/down, left/right orientation)
		+
		+	Which looked to be working ok in-game. But according to the vector approach I probably ended up with a bigger z-angle than I intended.
	--[[User:Arexack\|Arexack]] 16:55, 12 September 2006 (UTC)		--[[User:Arexack\|Arexack]] 16:55, 12 September 2006 (UTC)

@@ Line 17: / Line 17: @@
 In the only succesfull attempt at a double quaternion, I rotated around the x/y diagonal 90 degrees.
-(That would be the vector 2^0.5x, 2^0.5, 0 ?)
+(That would be the vector 1x,1y,0z ?)
 --[[User:Arexack|Arexack]] 16:55, 12 September 2006 (UTC)

← Older revision		Revision as of 17:00, 12 September 2006
Line 16:		Line 16:

	In the only succesfull attempt at a double quaternion, I rotated around the x/y diagonal 90 degrees.		In the only succesfull attempt at a double quaternion, I rotated around the x/y diagonal 90 degrees.
−	(That would be the vector <math>2^0.5x, 2^0.5, 0</math> ?)
		+
		+	(That would be the vector 2^0.5x, 2^0.5, 0 ?)

	--[[User:Arexack\|Arexack]] 16:55, 12 September 2006 (UTC)		--[[User:Arexack\|Arexack]] 16:55, 12 September 2006 (UTC)