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GSL integrator added - LatAnalyze now depends on GSL

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This commit is contained in:
Antonin Portelli
2014-04-17 12:17:34 +01:00
parent 2af61252b6
commit 39012e4b73
7 changed files with 226 additions and 4 deletions
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5
examples/Makefile.am
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@ -17,6 +17,7 @@ endif
noinst_PROGRAMS = \
exCompiledDoubleFunction\
exFit \
exIntegrator \
exMat \
exMathInterpreter \
exMin \
@ -31,6 +32,10 @@ exFit_SOURCES = exFit.cpp
exFit_CFLAGS = -g -O2
exFit_LDFLAGS = -L../lib/.libs -lLatAnalyze
exIntegrator_SOURCES = exIntegrator.cpp
exIntegrator_CFLAGS = -g -O2
exIntegrator_LDFLAGS = -L../lib/.libs -lLatAnalyze
exMat_SOURCES = exMat.cpp
exMat_CFLAGS = -g -O2
exMat_LDFLAGS = -L../lib/.libs -lLatAnalyze

32
examples/exIntegrator.cpp Normal file
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@ -0,0 +1,32 @@
#include <iostream>
#include <LatAnalyze/CompiledFunction.hpp>
#include <LatAnalyze/GslQagsIntegrator.hpp>
using namespace std;
using namespace Latan;
int main(int argc, char* argv[])
{
string source;
double xMin, xMax;
if (argc != 4)
{
cerr << "usage: " << argv[0] << " <function> <xMin> <xMax>" << endl;
return EXIT_FAILURE;
}
source = argv[1];
xMin = strTo<double>(argv[2]);
xMax = strTo<double>(argv[3]);
CompiledDoubleFunction f(1, source);
GslQagsIntegrator integrator;
double result;
result = integrator(f, xMin, xMax);
cout << "function integral on [" << xMin << ", " << xMax << "] = ";
cout << result << " +/- " << integrator.getLastError() <<endl;
return EXIT_SUCCESS;
}