How to suppress scientific notation when printing float values?

Question

Here's my code:

x = 1.0 y = 100000.0     print x/y 

My quotient displays as 1.00000e-05.

Is there any way to suppress scientific notation and make it display as 0.00001? I'm going to use the result as a string.

Answer 1

Using the newer version ''.format (also remember to specify how many digit after the . you wish to display, this depends on how small is the floating number). See this example:

>>> a = -7.1855143557448603e-17 >>> '{:f}'.format(a) '-0.000000' 

as shown above, default is 6 digits! This is not helpful for our case example, so instead we could use something like this:

>>> '{:.20f}'.format(a) '-0.00000000000000007186' 

Update

Starting in Python 3.6, this can be simplified with the new formatted string literal, as follows:

>>> f'{a:.20f}' '-0.00000000000000007186' 

Answer 2

'%f' % (x/y) 

but you need to manage precision yourself. e.g.,

'%f' % (1/10**8) 

will display zeros only.
details are in the docs

Or for Python 3 the equivalent old formatting or the newer style formatting