# What does this mean and read as?

• December 3rd 2012, 03:00 AM
aroe
What does this mean and read as?
2e-12

Is it 2 x e^-12 or 2 x 10^-12 ?

Thanks
• December 3rd 2012, 03:10 AM
MarkFL
Re: What does this mean and read as?
In what context is it used?
• December 3rd 2012, 03:13 AM
emakarov
Re: What does this mean and read as?
Quote:

Originally Posted by aroe
2e-12

Is it 2 x e^-12 or 2 x 10^-12 ?

Most likely the latter, especially if the context is related to computers. See E notation in Wikipedia. If it were $2e^{-12}$, it should have been written as 2e^(-12) or 2exp(-12).
• December 3rd 2012, 03:15 AM
aroe
Re: What does this mean and read as?
javascript
• December 3rd 2012, 03:16 AM
skeeter
Re: What does this mean and read as?
on a TI calculator ... $2 \times 10^{-12}$

for example

http://education.ti.com/kbase/C11956SS01.BMP