16 lines
215 B
C++
16 lines
215 B
C++
#include <cmath>
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#include "nr.h"
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using namespace std;
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DP NR::anorm2(Mat_I_DP &a)
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{
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int i,j;
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DP sum=0.0;
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int n=a.nrows();
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for (j=0;j<n;j++)
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for (i=0;i<n;i++)
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sum += a[i][j]*a[i][j];
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return sqrt(sum)/n;
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}
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