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  • License: Freeware
  • Last update: 6 years ago
  • Total downloads: 154
  • Price: Free |
  • Operating system: WinXP, Win2003, Win2000, Win Vista, Windows 7
  • Publisher: ArtSoft (2 other programs)
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windows default iconArtFormula Publisher's description

ArtFormula package contains two nonvisual Delphi and Lazarus componenst for symbolic expression parsing and evaluation.

ArtFormula package contains two nonvisual Delphi and Lazarus componenst for symbolic expression parsing and evaluation. Provides runtime scripting engine for automating your programs.


* 7 arithmetic operations
* 10 logical operations
* 6 bitwise operations
* string concatenation
* 22 arithmetic functions
* 10 statistical functions
* 2 logical functions
* 16 string functions
* 13 date functions
* 14 programming functions
* User defined constant
* Up to 255 user defined variables
* Up to 255 user defined functions (modules)
* Symbolical differentiation of functions with basic simplification of resulting derivatives

Arithmetic operation:
x + y, x - y, x * y, x / y, x % y (Mod), x ^ y (power), x y (Div)

Logical operation (true=1, false=0):
x > y, x < y, x >= y, x <= y, x = y, x <> y, ! x (not), x & y (and), x | y (or), x xor y

Bitwise operations:
x && y (band), x || y (bor), !!x (bnot), x bxor y, x >> y (shr), x << y (shl)

Predefined constants:
Pi = 3.1415926535897932385
True = 1
False = 0

sin, cos, tan, sinh, cosh, tanh, asin, acos, atan, asinh, acosh, atanh, sqrt, exp, log, lg (log base 10), int (integer part of a number), frac (fractional part of a number), abs, sign, rnd, randomize
max(x,y...), min(x,y,...), count(x,y,...), sum(x,y,...), sumofsquares(x,y,...), avg(x,y,...), variance(x,y,...), variancep(x,y,...), stddev(x,y,...), stddevp(x,y,...)
iff(cond,x,y) (if cond = true then result = x else result = y),
chr(x), length(s), trim(s), trimleft(s), trimright(s) lowercase(s), uppercase(s), midstr(s,x,y), leftstr(s,x), rightstr(s,x), pos(s,t), code(s), format(s,x), formatf(s,x), stringofchar(c,n), concat(s1,s2,...)
date(s), now, formatdate(s,d), year(d), month(d), day(d), hour(d), minute(d), second(d), millisecond(d), isleapyear(n), dayofweek(d), encodedate(y,m,d)


TArtFormula provides two styles of programming: formula style and scripting style. The first style assumes that all statements have the form of function call. The second style imply that you use common program language notation.

For example:

block(defines('i','n'), set('n',1),
series(set('i',1), val('i')<=5, inc('i'), set('n',val('n')*val('i'))),
msg('5! = '+val('n'),'result',0))

Is equal to:

var 'i', 'n' end;
for $i:=1; $i<=5; $i++ do
$n := $n*$i;
msg('5! = '+val('n'),'result',0);

You can mix two styles in one program.

TArtFormula programming language supports:

* Variables definitions
* Assigmnent statement
* Increment and Decrement operations
* Return function
* Compound statement (BEGIN... END)
* IF statement
* WHILE loop
* UNTIL loop
* FOR loop
* Interface functions: msg('text','caption',props), input('caption', 'text', defvalue)

Spreadsheet applicatiuon:

TArtFormula can be used in spreadsheet application. E.g. using GetVarsCount and GetVarValue event handlers one can implement calculation of sum(a1:b4), avg(c1:c99) and similar function calls, where a1:b4 and c1:c99 are range of sheet cells.

System Requirements:

No special requirements.
Program Release Status:
Program Install Support: Install and Uninstall

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