Essbase - Smarter than the average Bear?

@DESCENDANTS vs. @DESCENDENTS....
OK, I admit to being a bit anal when it comes to proper spelling. I noticed in one of my Business Rules that the @DESCENDANTS function was used, but mis-typed as @DESCENDENTS. The rule will save and validate and run without issue. Likewise, in an Essbase calc script, the code will validate. However, in the DBAG there is nothing on '@DESCENDENTS', but loads of information on @DESCENDANTS.
Is Essbase interpreting what I really meant when I typed @DESCENDENTS?

Tom