User:Bob K/sandbox: Revision history

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curprev 00:2600:26, 23 June 2024‎ Bob K talk contribs‎ 2,902 bytes −6,631‎ No edit summary undo Tag: Manual revert

curprev 11:3311:33, 21 June 2024‎ Bob K talk contribs‎ 10,746 bytes +7,844‎ No edit summary undo Tags: Reverted Visual edit

curprev 13:1013:10, 16 May 2024‎ Bob K talk contribs‎ 2,902 bytes −3,914‎ No edit summary undo

curprev 00:3300:33, 13 December 2023‎ Bob K talk contribs‎ 1,987 bytes +711‎ Undid revision 1189600862 by Bob K (talk) undo Tag: Undo

curprev 21:4921:49, 12 December 2023‎ Bob K talk contribs‎ 1,276 bytes −711‎ No edit summary undo Tag: Reverted
curprev 15:3515:35, 12 December 2023‎ Bob K talk contribs‎ 1,987 bytes −30,396‎ ←Replaced content with '============================================================== Question: What is the difference between <math>x(t)\ \stackrel{\mathcal{F}}{\Longleftrightarrow}\ X(f)</math> and <math>f(x)\ \stackrel{\mathcal{F}}{\Longleftrightarrow}\ \hat{f}(\xi),</math> both found in Wikipedia? Answer: Substantially '''nothing'''. Many/most EE texts use the 1st one to represent a Fourier transform pair. Mathematicians insist...' undo Tags: Replaced Manual revert
curprev 15:3315:33, 12 December 2023‎ Bob K talk contribs‎ 32,383 bytes −83‎ →‎Properties of the Fourier transform: simplify undo Tag: Reverted
curprev 14:2714:27, 12 December 2023‎ Bob K talk contribs‎ 32,466 bytes +30,479‎ No edit summary undo Tags: Reverted Visual edit: Switched

curprev 17:3717:37, 11 December 2023‎ Bob K talk contribs‎ 1,987 bytes +307‎ Undid revision 1189402557 by Bob K (talk) undo Tag: Undo
curprev 16:2616:26, 11 December 2023‎ Bob K talk contribs‎ 1,680 bytes −307‎ No edit summary undo Tags: Reverted Visual edit

curprev 18:4018:40, 29 November 2023‎ Bob K talk contribs‎ 1,987 bytes −21,608‎ ←Replaced content with '============================================================== Question: What is the difference between <math>x(t)\ \stackrel{\mathcal{F}}{\Longleftrightarrow}\ X(f)</math> and <math>f(x)\ \stackrel{\mathcal{F}}{\Longleftrightarrow}\ \hat{f}(\xi),</math> both found in Wikipedia? Answer: Substantially '''nothing'''. Many/most EE texts use the 1st one to represent a Fourier transform pair. Mathematicians insist...' undo Tags: Replaced Visual edit
curprev 13:2313:23, 29 November 2023‎ Bob K talk contribs‎ 23,595 bytes +3,316‎ No edit summary undo Tag: Visual edit