Hi All,
I want to print scientific numbers with a specified number of decimal places.
However, I want the number printed to be dynamically determined by the data.
Example:
> a = 0.00762921383941
> ea = 0.000830132912068
> a / ea
9.190352205653852
By default, I will print the uncertainty ("ea") with two significant digits.
In this example, the central value is about 10 times larger than the
uncertainty, so I want to print it with 3 significant figures. So I want to do
something like
> p = int(("%.1e" % (a / ea)).split('e')[-1]) # grab the power in the
> scientific notation (is there a better way?)
> if p >= 0:
> print('%.' + str(int(2+p)) +'e +- %.1e' % (a, ea))
> else:
print('%.2e +- %.1e' % (a, ea))
(desired output): 7.63e-03 +- 8.3e-04
but this fails. And I haven't figured out how to get this to work. Seems like
it should be simple.
Any help?
Thanks,
Andre
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