ClarisWorks: Extracting DayName from a Date Field or Cell (DB, SS)

This information was provided by Claris Corporation on 16 March 1998, and incorporated into Apple Computer's Tech Info Library.
Q. I want to extract the DayName from a field or cell but I keep getting #ARG! or #ERROR! as the calculation result. How do I do this?
A. You can do this with a calculation in either the spreadsheet or database environments. Here is the formula for a database:

=DAYNAME(WEEKDAY('Date Field'))

Here is the formula for a Spreadsheet:

=DAYNAME(WEEKDAY(A1))
Published Date: Feb 18, 2012