If I am reading this right, a range is expressed as a distance between the minimum and maximum values, and in the Monte Carlo part a number is generated from a uniform distribution within that range[1].

But if I just ask the calculator "1~2" (i.e. just a range without any operators), the histogram shows what looks like a normal distribution centered around 1.5[2].

Shouldn't the histogram be flat if the distribution is uniform?

[1] https://github.com/filiph/unsure/blob/123712482b7053974cbef9...

[2] https://filiph.github.io/unsure/#f=1~2

Under the "Limitations" section:

> Range is always a normal distribution, with the lower number being two standard deviations below the mean, and the upper number two standard deviations above. Nothing fancier is possible, in terms of input probability distributions.