cal-tex-cursor-day is an interactive autoloaded Lisp function in `cal-tex.el'.

(cal-tex-cursor-day &optional N EVENT)

Make a buffer with LaTeX commands for the day cursor is on.
Optional prefix argument N specifies number of days. The calendar shows
the hours between `cal-tex-daily-start' and `cal-tex-daily-end', using
the 24-hour clock if `cal-tex-24' is non-nil. Optional EVENT indicates
a buffer position to use instead of point.