Force ipython to output in scientific notation

Question

Is it possible for force ipython to output in scientific notation, or set the threshold at which it switches to scientific notation?

For example,

In [26]: 1000000000000

Out[26]: 1000000000000

But I want:

In [26]: 1000000000000

Out[26]: 1e12

Can I do this? I saw an old answer to this from years ago but it does not appear to be working anymore.

Does this answer your question? [set ipython's default scientific notation threshold](https://stackoverflow.com/questions/16866761/set-ipythons-default-scientific-notation-threshold) — Nagabhushan S N, Aug 14 '20 at 01:45
There is no threshold at which IPython will print *ints* in scientific notation. Floats, sure, but not ints. Printing ints in scientific notation would be ambiguous, making them look like floats. — user2357112, Aug 14 '20 at 01:45
@NagabhushanSN that doesn't answer the question. The solution no longer works. In ipython if I type %precision %.3e and then 1000000000000. it still outputs as 1000000000000.0 — ricitron, Aug 14 '20 at 02:04
@user2357112supportsMonica I find the same behavior when trying to output 100000000.0 — ricitron, Aug 14 '20 at 02:05

score 2 · Answer 1 · answered Aug 14 '20 at 01:42

2

just you do formatting like this:

print("{:e}".format(12300000))

output:

1.230000e+07

answered Aug 14 '20 at 01:42

Subbu VidyaSekar

1

That works but I'd like that to be the default behavior in ipython output. – ricitron Aug 14 '20 at 02:04
formatting is the only option. IPython notebook doesn't have this option right now. – Subbu VidyaSekar Aug 14 '20 at 02:08

1 Answers1