Context Navigation

Changes between Initial Version and Version 1 of Ticket #2985, comment 9

initial	v1
1	1	Reviewed r17797 and everything works as expected.
2	2
3		An error has been presented in the simplifier, specifically root(a,0) has been simplified to 1.0. However, the 0-th root is undefined ([https://math.stackexchange.com/questions/962807/does-the-zeroth-root-exist math-exchange]). This has been changed with r17820, which has to be reviewed again.
	3	An error has been present in the simplifier, specifically root(a,0) has been simplified to 1.0. However, the 0-th root is undefined ([https://math.stackexchange.com/questions/962807/does-the-zeroth-root-exist math-exchange]). This has been changed with r17820, which has to be reviewed again.
4	4