Generalised Sparse Grids

This example creates a generalised grid.

The first CLI argument is the number of dimensions, the second the level and the third the parameter T. It then prints out the grid size.

#include <sgpp/base/grid/Grid.hpp>
#include <cstdlib>
#include <iostream>
 
int main(int argc, char **argv) {
  auto dimensions = ((argc >= 2) ? std::atoi(argv[1]) : 2);
  auto level = ((argc >= 3) ? std::atoi(argv[2]) : 3);
  double T = ((argc >= 4) ? std::atof(argv[3]) : 0);
 
  auto grid = sgpp::base::Grid::createModLinearGrid(dimensions);
  auto& generator = grid->getGenerator();
  generator.regular(level, T);
  std::cout << grid->getSize() << std::endl;
}