What double precision floating point numbers really means?

Answer 1

it means that it uses 14.00 to express 14. they are the same number but using the former is more precise

Answer 2

https://en.m.wikipedia.org/wiki/Double-precision_floating-point_format

Answer 3

and thinks it is a decimal with hundredth point

Answer 4

oyyyy

Answer 5

it is used for higher precision number I.e of 14 digits which floating point doesn't support