String to Float, without introducing errors

[Ángel GR]

On 2022-12-19 16:14, MRAB wrote:
> To be fair, I don't think I've never seen that notation either! I've 
> only ever seen the form 6.67430E-11 ± 0.00015E-11, which is much clearer.

We use it regularly in our experimental data: 6.3(4), 15.002(10). Things 
would become complex using exponential forms for errors, specially when 
starting to play with exponents: 6.67430E-11 ± 1.5E-15.
-- 
Ángel GR