Help Me!! Math

[stevehuckss396]

Is

1.950938826E-2

The same as

.001950938826

I can't remember how it works!!

 

[JorgensenSteam]

Just move the decimal place to the left two places, or if it was E-4, then four places.

It would be 0.0195....etc.

 

[stevehuckss396]

Gotcha!! Thanks

 

[tel]

Hmmm.... I'd call it 2 thou and be done with it!

 

[ShedBoy]

Okay what is the meaning of this? This makes no sense to me, it seems to be about measurement but what is the E thrown in for. Is it to do with tolerance and fit? Do I need to know about this?
???
Brock

 

[Novian]

It's a number to a certain power of ten

1.950938826E-2 = 1.950938826 X 10^-2

Ex.
12 x 10 = 120
12 x 10^3 = 12000
12 x 10^-5 = 0.00012

 

[Maryak]

The "E" means it's scientific notification, which is a way of expressing very large/very small numbers without huge amounts of trailing or leading zeros.

In the example given, IMHO probably a bit of a waste of time. i.e. to write 1.950938826E-2, (14), is actually more effort than to write 0.01950938826, (13).

Hope this helps

Best Regards
Bob

 

[ShedBoy]

I think Tel has hit the nail on the head. How do you measure with that accuracy reliably?
Better yet how do you machine to that accuracy?

Brock

 

[Maryak]

Hmmm.... I'd call it 2 thou and be done with it!

I'd probably call it 20 thou ;D

 

[ShedBoy]

Now I am confused is it 2 or 20

 

[tel]

I'd probably call it 20 thou ;D

Oh, you want to be that accurate! ;D

 

[tel]

Bob is right - I'm a numeric cripple!

 

[Maryak]

Oh, you want to be that accurate! ;D

I see your using your boilermakers micrometer again.............otherwise known as a G clamp.

 

[steamer]

Now I am confused is it 2 or 20

.020 or 20 thousands....of an inch I assume.

 

[Maryak]

Dave,

Well it's around 20 thousandths or 2 hundredths of something or maybe even around 2% of something. ;D

 

[bezalel2000]

It's a number to a certain power of ten

1.950938826E-2 = 1.950938826 X 10^-2

Important to note that the "E" is a capitol letter and this implies power of ten.
One shouldn't get sloppy and write

1.950938826 e-2

as that has a whole different mathematical meaning.

Hay has any one got any pix for this thread? :

:big:

Bez

 

[mklotz]

Sigh.

 

[T Mihelich]

Is this a math... test??

 

[Omnimill]

I've only just read through this post and my head hurts ... :big:

Vic.

 

[cfellows]

I've only just read through this post and my head hurts ... :big:

Vic.

Me too! Now I'm not sure if this is a math problem or a communication problem...

Chuck