User contributions for 70.109.178.133

29 January 2012

• 03:5403:54, 29 January 2012 diff hist +866‎ User talk:Bob K ‎ →‎Instantaneous phase and Instantaneous frequency: new section
• 03:4303:43, 29 January 2012 diff hist +970‎ Talk:Instantaneous phase and frequency ‎ →‎Focus of the article: Article could use substantial improvement.
• 02:4402:44, 29 January 2012 diff hist −353‎ Phase (waves) ‎ Try to impose a little bit of consistency in notation. Most of the time, the convention is θ for the entire angle or argument to the sin() function and it's φ for the phase offset.
• 02:0802:08, 29 January 2012 diff hist −25‎ Sine wave ‎ Corrected a sign error on both phase offset φ and kx (assuming wave traveling in +x direction, which is the convention).
• 01:5301:53, 29 January 2012 diff hist +177‎ Talk:Pure tone ‎ →‎This article should be merged with sine wave.: Geeez.
• 01:5201:52, 29 January 2012 diff hist +401‎ Talk:Pure tone ‎ →‎This article should be merged with sine wave.: new section

28 January 2012

• 04:2004:20, 28 January 2012 diff hist +2,555‎ Talk:Additive synthesis ‎ →‎Olli, Chris, Ross? Cluster? Care to mosey on over to instantaneous frequency and clean that up?: new section
• 04:1604:16, 28 January 2012 diff hist +311‎ User talk:Jpat34721 ‎ →‎Would you consider modifying your graphic slightly?: new section

27 January 2012

• 05:0905:09, 27 January 2012 diff hist +43‎ Real-time computing ‎ Undid revision 473410925 by 90.217.220.74 (talk)

26 January 2012

• 17:0517:05, 26 January 2012 diff hist +240‎ Euler's identity ‎ →‎Mathematical beauty: Added a pertanent little limerick, with source.

25 January 2012

• 07:4907:49, 25 January 2012 diff hist 0‎ United States congressional apportionment ‎ →‎The Method of Equal Proportions: The following example also applies to the 2010 census. Why not refer to the more recent one?
• 07:3907:39, 25 January 2012 diff hist +7‎ United States congressional apportionment ‎ →‎The Method of Equal Proportions: "size" is ambiguous.
• 05:2205:22, 25 January 2012 diff hist −50‎ Additive synthesis ‎ →‎Inharmonic form: Isn't this a little better?
• 04:5704:57, 25 January 2012 diff hist +225‎ Additive synthesis ‎ →‎Discrete-time equations: Olli, I agree that f_k(t) is nonnegative, but it seems superflous with real cos(.). Added a note about notation. It anyone complains about WP:RS, look at Oppenheim & Schafer.

23 January 2012

• 17:2517:25, 23 January 2012 diff hist +24‎ Argument (complex analysis) ‎ →‎Computation
• 17:0917:09, 23 January 2012 diff hist +568‎ Talk:Additive synthesis ‎ →‎More history / citation research notes.

21 January 2012

• 18:4118:41, 21 January 2012 diff hist +63‎ Argument (complex analysis) ‎ →‎Computation: Added atan2( ) to definition. Switched order of principle value from basic definition and formula using tangent half-angle formula.
• 17:3317:33, 21 January 2012 diff hist 0‎ Additive synthesis ‎ →‎Definitions: Changed T to P so as not to confuse period of a periodic function with sampling period.
• 17:2817:28, 21 January 2012 diff hist −679‎ Additive synthesis ‎ →‎Definitions: Touch up.
• 16:4116:41, 21 January 2012 diff hist −114‎ Additive synthesis ‎ →‎Definitions: Made graphic a little bigger. Changed HTML symbols to <math>. Deleted a line that has pretty much been unnecessary.

19 January 2012

• 19:4619:46, 19 January 2012 diff hist +528‎ Talk:Additive synthesis ‎ →‎Audio samples: Hey Chris, whaddya think about changing symbols?
• 17:2817:28, 19 January 2012 diff hist +875‎ Talk:Additive synthesis ‎ →‎Audio samples: Diagram: I might be in favor of changing "a" to "r".