Notebook Calculator

DOING  LONG  CALCULATIONS  IN  NOTEBOOK !
GO  BACK  &  CHANGE  ERRORS  EASILY !
JUST  LIKE  TYPE  IN  A  TEXT  FIELD !
COPY + CUT + PASTE
EDIT & SAVE  CALCULATION  HISTORY !
SCIENTIFIC & GRAPHIC  CALCULATOR !

•   It Supports the File Management !
       - Create a file
       - Save
       - Open
       - Delete

•   Mathematical Functions:

    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:

    SUM(a1,a2,a3,a4) : a1+a2+a3+a4
    AVERAGE(a1,a2,a3,a4) : (a1+a2+a3+a4)÷4
    VARIANCE(a1,a2,a3,a4) : variance
    SD(...) : standard deviation
    SUMSQ(...) : sum of squares
    AD(...) : absolute deviation
    CV(...) : coefficient of variation
    SVARIANCE(...) : sample variance
    SSD(...) : sample standard deviation
    SCV(...) : sample coefficient of variance

•   Help Manual:

“//”  means a line comment or annotation.

            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:
   Start with letters, and not involving keywords.
             A, A1, B25, HAT (right)
             PRINT1, COS      (wrong)

- The Usage of PRINT:

              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. 

              16+5*6

  Click “Run”, the screen shows:

              RESULT=46

- Combination & Arrangement:

              C(n,k) = n!/(k!(n-k)!)
              A(n,k) = n!/(n-k)!

- Complex  Number
   When there is “i” or “∠” on the screen, it automatically enters Complex Number Calculation Mode.

               e.g.   X=3+4i  or  X=5∠53.1°

    9 functions are available for the Mode.
                SIN(X), COS(X), TAN(X)
                COT(X), SINH(X), COSH(X)
                SQRT(X), ABS(X), CONJUGATE(X)

- Integral

                 INTEGRAL X²,2,4

  Default precision is 300 times of calculations. It can be more accurate, e.g. 500 times.

                 INTEGRAL X²,2,4,500

- Graphics

                  PLOT SIN(X)
                  PLOT X²

Default length = 10, width = 10. Specify the lenght = 20, width = 5. Then we have,

                  PLOT X²,20,5

Default dense is 150 points. It also can be customized, e.g. 200 points.

                  PLOT X²,20,5,200