"Lommeregner" "Ikke et tal" "Fejl" "," "0" "1" "2" "3" "4" "5" "6" "7" "8" "9" "cos" "ln" "log" "sin" "tan" "ryd" "slet" "Eulers tal" "pi" "punktum" "venstre parentes" "højre parentes" "cosinus" "naturlig logaritme" "logaritme" "sinus" "tangens" "plus" "divider" "fakultet" "gange" "potens" "kvadratrod" "minus" "ryd" "slet" "lig med"