As our programming knowledge grows, we sometimes forget that computers are not human. Although the incremental and consistent growth of AI techniques, mining may make us believe otherwise :) This is not a blog about AI or ML, but about some basics
From my understanding of real numbers, I can easily postulate that
0.1 + 0.1 = 0.2 -- (1)
and
0.1 + 0.1 + 0.1 = 0.3 -- (2)
But for a computer formula (2) can be hard to comprehend and as a computer programmer we forget that from time to time
I asked my python interpreter
>>> 0.1+0.1+0.1 == 0.3
False
and later asked what is 0.1+0.1+0.1
>>> 0.1+0.1+0.1
0.30000000000000004
Try this in your favorite language and see what you get -- the math underneath should be the same
Reference - https://docs.python.org/2/tutorial/floatingpoint.html
From my understanding of real numbers, I can easily postulate that
0.1 + 0.1 = 0.2 -- (1)
and
0.1 + 0.1 + 0.1 = 0.3 -- (2)
But for a computer formula (2) can be hard to comprehend and as a computer programmer we forget that from time to time
I asked my python interpreter
>>> 0.1+0.1+0.1 == 0.3
False
and later asked what is 0.1+0.1+0.1
>>> 0.1+0.1+0.1
0.30000000000000004
Try this in your favorite language and see what you get -- the math underneath should be the same
Reference - https://docs.python.org/2/tutorial/floatingpoint.html