mirror of
https://github.com/triqs/dft_tools
synced 2024-12-25 13:53:40 +01:00
8d7dd34aeb
- To be able to give explicitely the number of point. - two functions : if the number of points is not given, take as before. - updated the doc.
19 lines
476 B
C++
19 lines
476 B
C++
#include <triqs/gfs.hpp>
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using namespace triqs::gfs;
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int main() {
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double beta = 1, a = 1;
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int N = 10000;
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auto gw = gf<imfreq>{{beta, Fermion, N/2}, {1, 1}};
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auto gt = gf<imtime>{{beta, Fermion, N}, {1, 1}};
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triqs::clef::placeholder<0> om_;
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gw(om_) << 1 / (om_ - a);
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// fills a full *view* of gt with the contents of the FFT
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gt() = inverse_fourier(gw);
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// make a new fresh gf from the FFT of gt with a mesh of size N/2
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auto gw2 = make_gf_from_fourier(gt, N/2);
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}
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