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