number.eo:590-592: Fix "ln" and its tests. Since new...

[0pdd]

The puzzle 105-5b662703 from #105 has to be resolved:

eo-math/src/main/eo/org/eolang/math/number.eo

Lines 590 to 592 in e4098ee

	# @todo #105:30min. Fix "ln" and its tests. Since new declarative "while"
	# was introduced current implementation of "ln" is not relevant anymore.
	# Need to remake it and unwrap tests

The puzzle was created by rultor on 19-Feb-23.

Estimate: 30 minutes, role: DEV.

If you have any technical questions, don't ask me, submit new tickets instead. The task will be "done" when the problem is fixed and the text of the puzzle is removed from the source code. Here is more about PDD and about me.

[0pdd]

@maxonfjvipon please pay attention to this new issue.