Also, .707... is the sine and also the cosine of 45 degrees, and is 1 over
the square root of 2. The number 1.4142136... is the square root of 2. The
elipses in these numbers indicate that there are infinitely more decimal
digits; these are called irrational numbers because they are not the ratio
of any whole numbers.
73 -- Lloyd, W3IUU
-----Original Message-----
From: Howard, W A 9 Y B W
Sent: Thursday, September 27, 2012 11:38 AM
To: [log in to unmask]
Subject: What are the Constants 0.707 and 1.414 referred to As?
Jose,
I don't know if there is actually a name for the two constants: 0.707 =
and=20
1.414.
These two constants are used to convert between RMS, Peak and Peak-to =
Peak=20
voltages of a pure sine wave.
The 120 volt power available in your home is a pure sine wave. You must =
realize that these constants only apply to a pure sine wave signal.
If the signal is any other shape than a sine wave, or contains harmonics =
than these values will not give accurate results.
Do you need me to discuss where each value is used? If so, I will try.
Hope this helps.
73
Howard #3
----- Original Message -----=20
From: "Jose Tamayo (KK4JZX)" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, September 27, 2012 9:18 AM
Subject: What are the Constants 0.707 and 1.414 referred to As?
> Hello my Friends,
>
>
>
> I wam studying for the General exam and was curious about something:
>
>
>
> There are two constants used in deriving some of the equations for the
> General Exam. I wonder if anyone would know what they are refered as =
by
> name:
>
>
>
> Constant 1: 0.707
>
> Constant 2: 1.414
>
>
>
> I know what the constants are. However, I don't know what they are=20
> called.
> Specifically, if I were developing an application and wanted to use =
these
> two constants, what would I call them?
>
>
>
> 73,
>
>
>
> Jose - KK4JZX
>
>=20
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