feat: add `math/base/special/expf` #8401

Job	Run time
Add initial reaction	2s
Update copyright header years / Update Copyright Years	28s
Rebase this PR on top of develop branch	0s
Check for required files	0s
Auto-fix lint errors	0s
Merge changes from develop branch into this PR	0s
Print a list of available slash commands	0s
Remove in-progress label	2s
	32s

Provide feedback