How can I round long decimal numbers into 0.00 format

Question

My numbers like 3.8485341e-06, 9.9999619e-01, 2.9322797e-20. How can I turn them into a number between 0-1. For example 0.89, 0.47, 0.14

But I need them in X.xx format, Yes actually I need to round them — Alper Alp, Jan 10 '21 at 20:18
Two of the three examples you gave would come out to 0.00. Is that what you want? — Ted Brownlow, Jan 10 '21 at 20:20
Does this answer your question? [Rounding to two decimal places in Python 2.7?](https://stackoverflow.com/questions/17470883/rounding-to-two-decimal-places-in-python-2-7) - I don't know why it specifies 2.7. The same methods still work. — wjandrea, Jan 10 '21 at 20:29

score 0 · Answer 1 · answered Jan 10 '21 at 20:20

0

If you wish to format them into a string in the format you can use f"{x:.02f}".

>>> x = 9.9999619e-01
>>> f"{x:.02f}"
'1.00'

Or for older versions of Python, "{:.02f}".format(x).

answered Jan 10 '21 at 20:20

orlp

score 0 · Accepted Answer · answered Jan 10 '21 at 20:21

0

You can get rid of the exponential form with this:

a=3.8485341e-06
'{0:.20f}'.format(a)

or this

print("%.20f" % a)

answered Jan 10 '21 at 20:21

Arseniy

2 Answers2