Add `rand.sh` and `to_normal.sh`
Increase precision
Fix `OFMT` and `CONVFMT` to be `%.16g`
Add `linspace.sh`
Slow but cleaner
Add `sum.sh`, `mul.sh` and `flatten.sh`
Remove `sum.rb` and `sum.rb.sh`
Add `dawn.sh` (double precision AWK) and use it
Whitespaces
Add `reduce.sh` and use it
Performance enhancement (~ 10% faster)
Change range of x1 from [0, 1) to (0, 1]