ODFF: LINEST, LOGEST functions

LINEST, LOGEST
"knownY: The set of y-values for the equation, one single column 
respectively one single row.
knownX: The set of x-values for the equation, one single column 
respectively one single row."

That doesn't come over clearly to a UK audience (may be OK in 
USA).

May I suggest:
"knownY: The set of y-values for the equation, either one single 
column or one single row.
knownX: The set of x-values for the equation, a single column or 
single row matching knownY."

D