The Single Track Operations - part 4 - inverse logs section of the testing does not appear to be correct. Where it says that "Diff Inverse Inverse case above, these blue tracks should be all 0-values." - these numbers should not equate to zero. The inverse log operator appears to be antilog. So the inverse log2 of 4 should be 16 (which is what is shown in IGB). The log2 of 4 is 2. The inverse of 2 (1/2) is 0.5 (which is what is shown in IGB). The diff of 16 and 0.5 is not 0.
It is unclear to me what this section is trying to test, but I think it needs to be rewritten.
Created new issue to update testing instructions - see link. Moving to closed.