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輸入長長的計算式時，修改非常方便 ！ 就像是在記事本中寫算數題一樣 ! 可以計算複數、科學計算、函數作圖、統計計算、積分計算 ！ • It Supports the File Management !       該計算器支持完整的文件管理系統 !        - Create a file           創建        - Save           保存        - Open           打開        - Delete           刪除 • Mathematical Functions:      數學函數     SIN(X) : sine of x     COS(X) : cosine of x     TAN(X) : tangent of x     COT(X) : cotangent of x     ASIN(X) : arcsine of x     ACOS(X) : arccosine of x     ATAN(X) : arctangent of x     SINH(X) : hyperbolic sine     COSH(X) : hyperbolic cosine     TANH(X) : hyperbolic tangent     ASINH(X) : inverse hyperbolic sine     ACOSH(X) : inverse hyperbolic cosine     ATANH(X) : inverse hyperbolic tangent     SQRT(X) : square root of x     ABS(X) : absolute value of x     FCT(X) : x factorial     LOG(X,Y) : logarithm of y to base x     LN(X) : natural logarithm of x     LOG(X) : base-10 logarithm of x     LOG10(X) : base-10 logarithm of x     LOG2(X) : base-2 logarithm of x     EXP(X) : base-e exponential of x     ERF(X) : the error function of x     ERFC(X) : the complementary error function of x     ROUND(X) : integral nearest to x     CEIL(X) : the smallest integral that is not less than x     FLOOR(X) : the largest integral that is not greater than x     TGAMMA(X) : the gamma function of x     LGAMMA(X) : the natural logarithm of the absolute value of the gamma function of x     X^Y : y-th power of x • Statistical functions: 統計函數     SUM(a1,a2,a3,a4) : a1+a2+a3+a4       求和     AVERAGE(a1,a2,a3,a4) : (a1+a2+a3+a4)÷4       求平均數     VARIANCE(a1,a2,a3,a4) : variance       方差     SD(...) : standard deviation       標準差     SUMSQ(...) : sum of squares       平方和     AD(...) : absolute deviation       絕對方差     CV(...) : coefficient of variation       變異係數     SVARIANCE(...) : sample variance       樣本方差     SSD(...) : sample standard deviation       樣本標準差     SCV(...) : sample coefficient of variance       樣本變異係數 • Help Manual:    幫助文檔 “//” 指註釋。被註釋的語句不執行。             A=2             B=3             C=A+B   Click “Run”, the screen shows:             C=5   If the line C=A+B is annotated ,              A=2              B=3              //C=A+B   Click “Run”, the screen shows:              B=3 - Variable Naming Rules:     變量名命名規則：    Start with letters, and not involving keywords.     需字母開頭。不得包含關鍵字。              A, A1, B25, HAT (對)              PRINT1, COS (錯) - The Usage of PRINT:    PRINT 關鍵字的使用方法：               A=10+5               B=10/5               PRITN A,B   Click “Run”, the screen shows:               A=15               B=2   Default variable name is RESULT , e.g.   如果數值沒有被命名，則默認名為“ RESULT”               16+5*6   Click “Run”, the screen shows:               RESULT=46 - Combination & Arrangement:    排列組合               C(n,k) = n!/(k!(n-k)!)               排列               A(n,k) = n!/(n-k)!               組合 - Complex Number    複數     當屏幕中出現“i” 或 “∠”時，系統會自動進入複數計算模式。                e.g. X=3+4i or X=5∠53.1°     只有下面9個函數可用於復數計算                 SIN(X), COS(X), TAN(X)                 COT(X), SINH(X), COSH(X)                 SQRT(X), ABS(X), CONJUGATE(X) - Integral    積分                  INTEGRAL X²,2,4   Default precision is 300 times of calculations. It can be more accurate, e.g. 500 times.   默認精度為300次。如果提高精度，可以修改。                  INTEGRAL X²,2,4,500 - Graphics    函數作圖                   PLOT SIN(X)                   PLOT X² Default length = 10, width = 10. Specify the lenght = 20, width = 5. Then we have, 如果什麼都不寫，默認長度為10，寬度為10。可修改如下：                   PLOT X²,20,5 Default dense is 150 points. It also can be customized, e.g. 200 points. 精度很可調整。                   PLOT X²,20,5,200