iota with custom boundary conditions

[Joseph Rushton Wakeling]

On 11/13/2012 03:08 PM, bearophile wrote:
> In general is it a good idea to use iota with floating point arguments?

I guess you're thinking of the difficulty of making exact equality comparisons 
between the current value and the end value?  A floating-point iota certainly 
allows you to represent certain things quite elegantly, although I suppose for 
safety's sake you might want to use an integer-based iota and calculate FP 
values from that.

In any case, the usefulness of closed-vs-open boundary conditions isn't limited 
to FP iota, although it's certainly the main use case.