How to calculate the exponential values manually

dvpawankumar · Post by **dvpawankumar** » Mon Aug 11, 2008 8:09 am

Hi All,

If anyone knows how to calculate the exponential values please help me on this.

I have a value like 7.e-0.002. How to calculate this value?

And also the Datastage tool displaying different value as per our manual calculation. So here I may be wrong with manual calculation.

Thanks
Pawan

keshav0307 · Post by **keshav0307** » Mon Aug 11, 2008 9:27 am

how you calculated it manually?

pavan_test · Post by **pavan_test** » Mon Aug 11, 2008 11:26 am

ray.wurlod · Post by **ray.wurlod** » Mon Aug 11, 2008 3:32 pm

It is highly unusual to have decimal numbers in the exponent for "scientific notation".

That said, the calculation is mantissa * (10 ** exponent) - in your case, 7 * (10 ** -0.002)