将尾随零添加到浮动小数

Question

I am trying to write some floats numbers as decimals with 14 digit after floating point. So i want to add traling zeros for numbers who have less than 14 digits. however, when I use the folowing, it performs a random approximation rather than adding zeros.

print ('%.14f' % 381.949875)
print ('%.14f' % 383.558625 )
print ( '%.14f' % 382.593375)

The result is as follows:

381.94987500000002
383.55862500000001
382.59337499999998

Any clue?

Answer 1

You are looking for this formatting I believe

f"{381.949875:0<14}"
f"{383.558625:0<14}"
f"{382.593375:0<14}"