"計算機" "." "deg" "rad" "CLR" "已清除" "DEL" "歐拉數" "圓周率" "小數點" "左括弧" "右括弧" "餘弦" "自然對數" "對數" "正弦" "正切" "反餘弦" "反正弦" "反正切" "十的次方數" "指數函數" "平方" "加" "除" "階乘" "乘" "百分比" "次方" "平方根" "減" "角度模式" "弧度模式" "切換至角度" "切換至弧度" "等號" "清除" "刪除" "顯示反函數" "隱藏反函數" "非數字" "算式錯誤" "已中止" "無限大？" "不可除零" "已複製文字" "運算已取消" "操作逾時，數值可能為無限或未定義。" "延長逾時時間" "關閉" "(準確)" "(最後一個數字 ±1)" "作答時使用前置數字" "以分數作答" "開放原始碼授權"