#### Maths/Calculator Query

O

I'm calculating some geometric means of different pairs of numbers. The one I've just done gives a readout on the calculator screen of:

3.283991735373e-4

Does the e-4 bit on the end of the number basically mean that the number is far too long to fit on the screen so there is an error (e), and the -4 bit indicates that to get the real answer (which I am expecting to be very small) I have to move the decimal point 4 places to the left?

So it would end up as 0.000328

(I am wanting it to 6 decimal places)

Have I understood things correctly?

By the way, how do you give other users stars for helpfulness? Wanted to earlier today and didn't seem to have the function available...

(up)(sprout)(up)

B

Ogriv, there is no error. e means EXP (power to 10) so e-4 = 10 exp(-4) = 0.0001

And you are right. 3.283991735373e-4 = 0.000328

O

Thanks very much, Blue... I imagine EXP stands for exponential or something like that?

Nice to know I remembered the bouncing decimal point from Mrs Courtney's maths lessons of yore...

Thanks very much!