# Math Help - What does this mean and read as?

1. ## What does this mean and read as?

2e-12

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

Thanks

2. ## Re: What does this mean and read as?

In what context is it used?

3. ## Re: What does this mean and read as?

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).

javascript

5. ## Re: What does this mean and read as?

on a TI calculator ... $2 \times 10^{-12}$

for example