IB enhancements for Comet32

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[[IB_Statements/UserDefinedProcs|'''User Defined Procedures''']]
[[IB_Statements/UserDefinedProcs|'''User Defined Procedures''']]
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Comet32 Numeric Processing
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    * Comet32 provides much enhanced numeric handling over Comet16. These Specs may change prior to official release.
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    * Numeric variables can be as long as 32 decimal places. This is twice the length of Comet16.
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    * Expression results are calculated to length 64.32 so that partial results of expressions are preserved.
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    * The following Comet16 Functionality is supported::
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            Add,          z = x + y
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            Subtract,      z = x - y
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            Multiply,      z = x * y
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            Divide,        z = x / y
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            Negate,        z = - x
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            Abs,          z = abs(x)      -- Return the absolute value of x
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            Int,          z = int(x)      -- Return the integer portion of x
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            Fpt,          z = abs(x)      -- Return the fractional portion of x
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            Sgn,          z = abs(x)      -- Return the sign of x (-1,0,+1)
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            Num,          z = num(a$,err) -- Return the string a$ converted to a number.
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            Asc,          z = asc(a$)    -- Return the ascii equivalent of the first character in a$.
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            Len,          z = len(a$)    -- Return the length of string a$.
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            BitwiseAnd,    z = x and y
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            BitwiseOr,    z = x or y
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            BitwiseXor,    z = x xor y
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            BitwiseNot,    z = not(x)
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            Mod,          z = x mod y    -- Divides int(x) by int(y) and return the remainder
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            Sqrt,          z = sqrt(x)    -- Return the Square Root of x
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            Rnd,          z = rnd()      -- Return a "random number" between 0 and 1
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    * Many additional math functions are supported in Comet32:
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            Cbrt,          z = cbrt(x)    -- Return the Cube Root of x
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            Log,          z = log(x)      -- Return the base-e logarithm of x, so x==exp(z)
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            Log10,        z = log10(x)    -- Return the base-10 logarithm of x, so x==pow(10,z)
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            Exp,          z = exp(x)      -- Return e raised to the power x, so x==log(z)
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            Pow,          z = pow(x,y)    -- Return x raised to the power y
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            Sin,          z = sin(x)      -- Return the sine of x, with x in radians
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            Cos,          z = cos(x)      -- Return the cosine of x, with x in radians
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            Tan,          z = tan(x)      -- Return the tangent of x, with x in radians
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            Asin,          z = asin(x)    -- Return the inverse sine of x, in radians
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            Acos,          z = acos(x)    -- Return the inverse cosine of x, in radians
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            Atan,          z = atan(x)    -- Return the inverse tangent of x, in radians
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            Atan2,        z = atan2(y,x)  -- Return the 4 quadrant inverse tangent of y/x
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            Sinh,          z = sinh(x)    -- Return the hyperbolic sine of x
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            Cosh,          z = cosh(x)    -- Return the hyperbolic cosine of x
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            Tanh,          z = tanh(x)    -- Return the hyperbolic tangent of x
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            Asinh,        z = asinh(x)    -- Return the inverse hyperbolic sine of x
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            Acosh,        z = acosh(x)    -- Return the inverse hyperbolic cosine of x
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            Atanh,        z = atanh(x)    -- Return the inverse hyperbolic tangent of x
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            Factorial,    z = factorial(x)-- Return the factorial of x
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            Floor,        z = floor(x)    -- Return the floor (next lowest integer value) of x.
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            Ceil,          z = ceil(x)    -- Return the ceil (next highest integer value) of x.
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            Gcd,          z = gcd(x,y)    -- Return the GCD (greatest common divisor) of x, y.
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            Lcm,          z = lcm(x,y)    -- Return the LCM (least common multiple) of x, y.
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    * Beware! The following code will not work the same for Comet32 as it did for Comet16:
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        For I = 0 to 99                   
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            A$ = "T" + sub(str(i+100),15,2)
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        Next i
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        Because the result of the addition is in the accumulator which has changed.
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    * The following code will ALWAYS work for both Comet16 and Comet32:
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        For I = 0 to 99
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              A$ = `T' + sub(strip(str(i+100)),2,2)
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        Next I

Revision as of 19:05, 4 February 2010

Search File - C32

InputFile and PrintFile - C32

GetFormat and SetFormat - C32

User Defined Procedures

Comet32 Numeric Processing 

   * Comet32 provides much enhanced numeric handling over Comet16. These Specs may change prior to official release.

   * Numeric variables can be as long as 32 decimal places. This is twice the length of Comet16.

   * Expression results are calculated to length 64.32 so that partial results of expressions are preserved.

   * The following Comet16 Functionality is supported::



           Add,           z = x + y

           Subtract,      z = x - y

           Multiply,      z = x * y

           Divide,        z = x / y

           Negate,        z = - x

           Abs,           z = abs(x)      -- Return the absolute value of x

           Int,           z = int(x)      -- Return the integer portion of x

           Fpt,           z = abs(x)      -- Return the fractional portion of x

           Sgn,           z = abs(x)      -- Return the sign of x (-1,0,+1)

           Num,           z = num(a$,err) -- Return the string a$ converted to a number.

           Asc,           z = asc(a$)     -- Return the ascii equivalent of the first character in a$.

           Len,           z = len(a$)     -- Return the length of string a$.

           BitwiseAnd,    z = x and y

           BitwiseOr,     z = x or y

           BitwiseXor,    z = x xor y

           BitwiseNot,    z = not(x)

           Mod,           z = x mod y     -- Divides int(x) by int(y) and return the remainder

           Sqrt,          z = sqrt(x)     -- Return the Square Root of x

           Rnd,           z = rnd()       -- Return a "random number" between 0 and 1

   * Many additional math functions are supported in Comet32:



           Cbrt,          z = cbrt(x)     -- Return the Cube Root of x

           Log,           z = log(x)      -- Return the base-e logarithm of x, so x==exp(z)

           Log10,         z = log10(x)    -- Return the base-10 logarithm of x, so x==pow(10,z)

           Exp,           z = exp(x)      -- Return e raised to the power x, so x==log(z)

           Pow,           z = pow(x,y)    -- Return x raised to the power y

           Sin,           z = sin(x)      -- Return the sine of x, with x in radians

           Cos,           z = cos(x)      -- Return the cosine of x, with x in radians

           Tan,           z = tan(x)      -- Return the tangent of x, with x in radians

           Asin,          z = asin(x)     -- Return the inverse sine of x, in radians

           Acos,          z = acos(x)     -- Return the inverse cosine of x, in radians

           Atan,          z = atan(x)     -- Return the inverse tangent of x, in radians

           Atan2,         z = atan2(y,x)  -- Return the 4 quadrant inverse tangent of y/x

           Sinh,          z = sinh(x)     -- Return the hyperbolic sine of x

           Cosh,          z = cosh(x)     -- Return the hyperbolic cosine of x

           Tanh,          z = tanh(x)     -- Return the hyperbolic tangent of x

           Asinh,         z = asinh(x)    -- Return the inverse hyperbolic sine of x

           Acosh,         z = acosh(x)    -- Return the inverse hyperbolic cosine of x

           Atanh,         z = atanh(x)    -- Return the inverse hyperbolic tangent of x

           Factorial,     z = factorial(x)-- Return the factorial of x

           Floor,         z = floor(x)    -- Return the floor (next lowest integer value) of x.

           Ceil,          z = ceil(x)     -- Return the ceil (next highest integer value) of x.

           Gcd,           z = gcd(x,y)    -- Return the GCD (greatest common divisor) of x, y.

           Lcm,           z = lcm(x,y)    -- Return the LCM (least common multiple) of x, y.



   * Beware! The following code will not work the same for Comet32 as it did for Comet16:



        For I = 0 to 99                     

            A$ = "T" + sub(str(i+100),15,2)

        Next i 

        Because the result of the addition is in the accumulator which has changed.

   * The following code will ALWAYS work for both Comet16 and Comet32:



       For I = 0 to 99

             A$ = `T' + sub(strip(str(i+100)),2,2)

       Next I
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