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Brian Reay wrote:
On 25/02/15 10:39, gareth wrote: "rickman" wrote in message ... I thought it might be that, but it still makes no sense to me. Who or how does changing the direction of rotation of a rotating vector change its "size". Are you defining size as the rotation so that going from a + to a - is like reversing the direction of a vector? I think most people would consider the "size" of a vector to be the magnitude which is independent of phase angle and so rotation, no? Perhaps you can explain this with a little math? Not my gibberish, refer to the original posting ... -----ooooo----- From: "Brian Reay" Newsgroups: alt.engineering.electrical,uk.radio.amateur Subject: Phase noise Date: Sat, 13 Dec 2003 10:21:54 -0000 Message-ID: The term e^(-jwt) isn't some magical time machine relating to "minus time", e^(-jwt) is simply another way of writing 1/(e^jwt) which is a value that decreases as t increasing. See, he has trimmed his part, which clearly didn't refer to the true usage of negative frequency. I simply over estimated is ability to grasp the meaning of what I'd said without more detail. This was obvious as he also claimed claimed that division was impossible with complex numbers. He will attempt to drag this out, as he always does, but a look in the archive will show his claims to be nonsense. He drags this up from time to time, generally after a drubbing, He really doesn't like being proven wrong. Look at the date, he has been dragging this up with boring regularity since then. I've lost count of the times it has been explained to him. He has finally got the idea of the clockwise rotating phasor. He struggled with the idea that, as the phasor rotated, the angle became more negative, and thus decreased. eg -20 -10 That Gareth is still stewing over the correction you gave him 11 years ago underlines his mental instability. -- STC // M0TEY // twitter.com/ukradioamateur |
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