0

In python3 is there a nice way to set significant figures - i.e if I have a list:

l = [2.2738257169723513, 2.2725769281387329, 2.3101812601089478]

I can use the nice new print system and do

print(*l,sep="\t")

But I'm unclear as to how to set the sigfig with out doing 

m = "%.2f, %.2f, %.2f" % (l[0], l[1], l[2])
print(m)

I was wondering if there was an option to print to just say - print all floats to 2 dp?

I guess I could use a loop but that seems not very Python like

4

1 回答 1

0

Actually, it is definitely pythonic, and it is the only way to do what you're asking. That said, you can still use a comprehension to make this more concise (in this cause a tuple, but you can use a list or use list(map():

# I've changed the name to float_list because l should not be
# used as a variable name in Python according to the standard
# style recommendations
print(*('{0:.2f}'.format(x) for x in float_list), sep="\t")
于 2011-10-26T18:55:48.120 回答