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Mathematical expression evaluator (parser) AD_eval_math_expression version 1.04, UNICODE compatible:
C++ parser function eval_math_expression_xyzt() evaluates a
string of the mathematical expression with variables x, y, z and t (values defined separately). An example of the math expression is
log(x/y) /
sin(power(-0.118,t)) + t^2. The main function is declared as
follows:
ME_TYPE eval_math_expression_xyzt(const
char *math_expression,
ME_TYPE x, ME_TYPE y, ME_TYPE z, ME_TYPE t)
Where:
- Parameter math_expression is a string containing
mathematical expression (for example (1-e^((-x^2)/(y-t))) cos(pi*z)) , or sequence of expressions
as f=sin(x)+z;x=10;z=cos(t);t=x+y
or t=x+y;
z=cos(t); x = 10; f = sin(x)+z.
- Parameters x, y, z and t are values of variables x, y, z and t.
Result of the function is a value of
the evaluated expression.
Full description of the function is
in the file AD_eval_math_expression.h
or here.
History of versions is here.
You can freely download
of source files of AD_eval_math_expression.h and AD_eval_math_expression.cpp here (version 1.04, size of AD_eval_math_expression_v_1-04_source_files.zip
is 61,446 bytes).
Executables of mathematical
expression evaluator (parser) are made as examples of using the base C++
function eval_math_expression_xyzt():
·
Free download of
Win32 executable EvalMath_MFC71.exe
(version 1.04, size of EvalMath_MFC71_v_1-04_executable.zip
is 198,123 bytes).
Snapshot of EvalMath.exe
· Free
download of Win32 console executable EvalMath_Win32Console71.exe
with required *.dll (version 1.04, all required *.dll files are included,
size of EvalMath_Win32Console71_v_1‑04_exectable.zip
is 849,732 bytes).
·
Free
download of Win32 console executable EvalMath_Win32Console71.exe
(version 1.04, *.dll files are not included, size of EvalMath_Win32Console71_v_1-04_executable_no_dll.zip
is 24,513 bytes).
In
addition, you can freely download Microsoft Visual Studio projects based on
mathematical expression evaluator:
· Microsoft Visual Studio C++
2003 MFC project file EvalMath_MFC71
(version 1.04, size of EvalMath_MFC71_v_1‑04.zip
is 88,266 bytes).
· Microsoft Visual
Studio C++ 2008 MFC project file converted from EvalMath_MFC71 (version 1.04, size of EvalMath_MFC_MSVS2008_v_1‑04.zip
is 95,845 bytes).
· Microsoft Visual
Studio C++ 2003 Win32 console project file converted from EvalMath_MFC71 (version 1.04, size of EvalMath_Win32Console71_v_1‑04.zip is
48,122 bytes).
· Microsoft
Visual Studio C++ 2008 Win32 console project file converted from EvalMath_MFC71 (version 1.04, size of EvalMath_Win32Console_MSVS2008_v_1‑04.zip
is 49,660 bytes).
· Win32
console source files eval_math_expression.cpp
(version 1.04, size of EvalMath_expression_console_v_1-04_source_files.zip
is 64,931 bytes).
Other:
·
TLife - John Horton Conways game Life on a toroid. It is
modified version of the game with 3 possible colors of cells. Space of the game
is toroidal, tube or plane. Download version 2.0.
Snapshot
of TLife.exe
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2010.03.17.