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

This commit is contained in:
Arash Partow 2016-09-17 14:33:51 +10:00
parent dbfce796fd
commit 98006471f3
1 changed files with 2 additions and 2 deletions
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4
exprtk_simple_example_10.cpp
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@ -65,17 +65,17 @@ void newton_sqrt()
std::string expression_str = "newton_sqrt(x)"; std::string expression_str = "newton_sqrt(x)";
expression_t expression; expression_t expression;
expression.register_symbol_table(symbol_table); expression.register_symbol_table(symbol_table);
parser_t parser; parser_t parser;
parser.compile(expression_str,expression); parser.compile(expression_str,expression);
for (std::size_t i = 0; i < 100; ++i) for (std::size_t i = 0; i < 100; ++i)
{ {
x = i; x = i;
T result = expression.value(); T result = expression.value();
printf("sqrt(%03d) - Result: %12.10f\tReal: %12.10f\n", printf("sqrt(%03d) - Result: %12.10f\tReal: %12.10f\n",
static_cast<unsigned int>(i), static_cast<unsigned int>(i),
result, result,