Logarithmic scales - I need some help....!!!

Logarithmic scales - I need some help....!!!

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Discussion

beanbag

Original Poster:

7,346 posts

256 months

Friday 13th March 2009
quotequote all
I'm looking for a PH mathematician buff who can help me define a logarithmic scale for a range of numbers along two sliders.

For example:


The range can be between 1.00 and 10,000.00, and results between 1 and 10 must be defined by a scale of one decimal point at intervals of 0.1.

When the range is >10 - 100, the range is defined by a scale of 1, and then of course we need the logarithmic scale between >100 and 10,000.

The first part is quite straight forward, but is there a mathematical formula to define all this or just the last part of the range? (>100-10,000).

Cheers,

BB