A floating point literal is an optional
- sign, followed by a sequence of numbers or underscores, followed by a dot, followed by numbers or underscores, followed by an optional exponent suffix, followed by an optional type suffix. If no suffix is present, the literal's type is
1.0 # Float64 1.0_f32 # Float32 1_f32 # Float32 1e10 # Float64 1.5e10 # Float64 1.5e-7 # Float64 +1.3 # Float64 -0.5 # Float64
_ before the suffix is optional.
Underscores can be used to make some numbers more readable:
1_000_000.111_111 # a lot more readable than 1000000.111111, yet functionally the same
To the extent possible under law, the persons who contributed to this workhave waived
all copyright and related or neighboring rights to this workby associating CC0 with it.