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C++ Mathematical Expression Library (ExprTk) http://www.partow.net/programming/exprtk/index.html

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Arash Partow
2014-04-27 14:15:43 +10:00
parent 86514b460f
commit ab7c1677e5
4 changed files with 654 additions and 105 deletions
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31
exprtk_simple_example_10.cpp
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@ -41,21 +41,22 @@ void newton_sqrt()
compositor
.add("newton_sqrt_impl",
"switch "
"{ "
" case x < 0 : -inf; "
" case x == 0 : 0; "
" case x == 1 : 1; "
" default: "
" ~{ "
" z := 100; "
" y := x / 2; "
" repeat "
" if (equal(y * y,x), z := 0, 0);"
" y := (1 / 2) * (y + (x / y)); "
" until ((z -= 1) <= 0) "
" }; "
"} ",
"switch "
"{ "
" case x < 0 : -inf; "
" case x == 0 : 0; "
" case x == 1 : 1; "
" default: "
" ~{ "
" z := 100; "
" y := x / 2; "
" repeat "
" y := (1 / 2) * (y + (x / y)); "
" if (equal(y * y,x)) "
" break[y]; "
" until ((z -= 1) <= 0); "
" }; "
"} ",
"x","y","z");
compositor