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

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Arash Partow
2015-03-28 23:21:55 +11:00
parent 73b1e4c9f3
commit 53b2977902
8 changed files with 3861 additions and 2838 deletions
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10
exprtk_simple_example_03.cpp
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@ -24,19 +24,23 @@
template <typename T>
void polynomial()
{
typedef exprtk::symbol_table<T> symbol_table_t;
typedef exprtk::expression<T> expression_t;
typedef exprtk::parser<T> parser_t;
std::string expression_string = "25x^5 - 35x^4 - 15x^3 + 40x^2 - 15x + 1";
T r0 = T(0);
T r1 = T(1);
T x = T(0);
exprtk::symbol_table<T> symbol_table;
symbol_table_t symbol_table;
symbol_table.add_variable("x",x);
exprtk::expression<T> expression;
expression_t expression;
expression.register_symbol_table(symbol_table);
exprtk::parser<T> parser;
parser_t parser;
parser.compile(expression_string,expression);
const T delta = T(1.0 / 100.0);