"Kalkulator" "Ikke et tall" "Feil" "," "0" "1" "2" "3" "4" "5" "6" "7" "8" "9" "cos" "ln" "log" "sin" "tan" "clr" "del" "Eulers tall" "pi" "komma " "venstre parentes" "høyre parentes" "cosinus" "naturlig logaritme" "logaritme" "sinus" "tangent" "pluss" "dele" "fakultet" "ganger" "potens" "kvadratrot" "minusknapp" "slett" "slett" "er lik"