String to Float, without introducing errors

[rbowman]

On Sun, 18 Dec 2022 11:14:28 -0500, Dennis Lee Bieber wrote:

> .. And maybe lament the days when a 3-digit result was acceptable in
> math class -- being the typical capability in reading a standard (10"
> scale) slide rule.

Arguably more thought was given to what those three digits meant in the 
real world. For example, is calculating a latitude to 6 decimal places 
meaningful when the data was gathered by a GPS receiver with 5m accuracy?