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LatAnalyze/examples/exMin.cpp

33 lines
689 B
C++

#include <iostream>
#include <LatAnalyze/CompiledFunction.hpp>
#include <LatAnalyze/MinuitMinimizer.hpp>
using namespace std;
using namespace Latan;
int main(int argc, char* argv[])
{
string source;
if (argc != 2)
{
cerr << "usage: " << argv[0] << " <function>" << endl;
return EXIT_FAILURE;
}
source = argv[1];
DoubleFunction f = compile(source, 1);
MinuitMinimizer minimize;
DVec init(1);
double min;
init(0) = 0.1;
minimize.setInit(init);
minimize.setVerbosity(Minimizer::Verbosity::Debug);
min = minimize(f)(0);
cout << "function minimum = " << min << endl;
return EXIT_SUCCESS;
}