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/sci/ - Science & Math

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4482450 No.4482450 [Reply] [Original]

Does the golden ratio phi have any relation to phi as used in electrical engineering?

Is there a golden ratio angle, and if so, what is it?

>> No.4482458

>phi as used in electrical engineering
How is it used in electrical engineering?

Chances are they don't have much to do with each other.

>> No.4482471

golden ratio angle is two things

multiples of 36 degrees = pi /5 because golden ratio turns up in pentagram side lengths

180(3 - sqrt(5)), because arc lengths form golden ratios

>> No.4482480

>could it mean the same as the phi in the greek prime-minister's name?

>> No.4482589
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4482589

>could it mean the same as the phi in the greek prime-minister's name?
Absolutely!

>>4482458
Knowing how phi does relate to real world ratios, I couldn't be sure either way.

>>4482471
Three things:
1. Thanks!
2. Mind blown. Is this the basis for the ancients choice of a sexagesimal number system? Very interesting.
3. I'm not quite sure what an arc is. It has something to do with angles doesn't it? English isn't my mother/father language. I'm danish if that helps facilitate an explanation.