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#include <iostream> |
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#include <Eigen/Core> |
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using namespace std; |
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using namespace Eigen; |
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#ifndef MATTYPE |
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#define MATTYPE MatrixXLd |
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#endif |
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#ifndef MATSIZE |
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#define MATSIZE 400 |
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#endif |
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#ifndef REPEAT |
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#define REPEAT 100 |
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#endif |
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int main(int argc, char *argv[]) |
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{ |
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MATTYPE I = MATTYPE::Ones(MATSIZE,MATSIZE); |
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MATTYPE m(MATSIZE,MATSIZE); |
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for(int i = 0; i < MATSIZE; i++) for(int j = 0; j < MATSIZE; j++) |
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{ |
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m(i,j) = (i+j+1)/(MATSIZE*MATSIZE); |
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} |
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for(int a = 0; a < REPEAT; a++) |
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{ |
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m = I + 0.0001 * (m + m*m); |
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} |
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cout << m(0,0) << endl; |
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return 0; |
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} |
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