Slider does not work well with decimals or odd numbers

[aslante]

I need the slider to display odd numbered decimals in increments of 0.2 (1.1, 1.3, 1.5, 1.7, 1.9, 2.1, up to 4.4).

This is how I've set it up..

However it shows minimum value as 1 and intervals of 0.2, so I get 1, 1.2, 1.4, 1.6. Not the intervals it's set for. At times it even displays infinite numbers of decimals like 3.00000000000004.

Anyone has a solution for this?