Return to KLUBNL.PL main page
| To: | [email protected] |
|---|---|
| Subject: | Re: LF: something for the weekend ?? |
| From: | "Rik Strobbe" <[email protected]> |
| Date: | Fri, 25 Apr 2003 16:54:41 +0200 |
| In-reply-to: | <000901c30b37$258cd800$6507a8c0@Main> |
| Reply-to: | [email protected] |
| Sender: | <[email protected]> |
Hello Alan, Hi Andy, I am afraid my Terman "Radio Engineers Handbook" 1943 Page 19 gives Sin(A).Cos(B)= Sin(A-B)+Sin(A+B) ....if we forget about the 0.5 factor. But Andy took Cos(A)*Sin(B) instead of Sin(A)*Cos(B)So if we swap A and B in your formula we come to : Sin(B-A) + Sin(B+A) = Sin(B+A) + Sin(B-A) If we put that back to the "A first - B last" it becomes : Sin(A+B) + Sin(-A+B) = Sin(A+B) - Sin(A-B) This last is what Andy gave. 73, Rik ON7YD |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: LF: A conumdrum for the weekend - Image Can celling Mixer., Rik Strobbe |
|---|---|
| Next by Date: | LF: RE: something for the weekend ??, Andy talbot |
| Previous by Thread: | LF: something for the weekend ??, Alan Melia |
| Next by Thread: | Re: LF: A conumdrum for the weekend - Image Can celling Mixer., Rik Strobbe |
| Indexes: | [Date] [Thread] [Top] [All Lists] |