HP Prime malfunction(s)

[Han]

(04-19-2019 03:43 PM)tjfshp Wrote:  Attempting to compute a "combo or perm", I press, ON, Tool Box, 5, 2 and the display: "ERROR". Then I press OK and type "20,4" within the parenthesis: "ERROR:Syntac Error"

Could this possibly be due to your settings for fraction mark? Some folks prefer to use the comma "," symbol for their fraction mark, which usually then makes the semicolon ";" the separator symbol (in place of the comma).