Problem

The Slider widget currently only allows for a linear scale. Sometimes it's nice to have interactive control over LogSpaced values so a LogSlider would be great for this.

Proposed Solution

Two parts:

1. Add an argument toSlider that can be used transform from the slider position (0,1) to arbitrary values
2. Create aLogSlider as a subclass ofSlider that sets that transform as approriate log scaling.

Additional context and prior art

https://ipywidgets.readthedocs.io/en/stable/examples/Widget%20List.html#FloatLogSlider