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conversion constructor from vec3 and mat3 to nrvec and nrmat

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Jiri Pittner
2023-11-18 15:15:32 +01:00
parent 45e8f6c52e
commit a4c422f32a
10 changed files with 111 additions and 30 deletions
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29
t.cc
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@@ -426,7 +426,7 @@ cout <<b;
cout <<d;
}
if(1)
if(0)
{
NRMat<double> a;
cin >>a ;
@@ -2784,5 +2784,32 @@ NRSMat<char> adjperm = adj.permuted(p);
cout <<"resorted graph = "<<adjperm<<endl;
}
if(1)
{
Mat3<double> a;
a.randomize(10.);
cout<<a<<endl;
Mat3<double> ata = a.transpose()*a;
Mat3<double> work(ata);
Vec3<double> w;
Mat3<double> v;
work.eivec_sym(w,v,true);
cout <<w<<endl<<sqrt(w[0])<<" "<<sqrt(w[1])<<" "<<sqrt(w[2])<<" "<<endl<<endl<<v<<endl;
Mat3<double> aat = a*a.transpose();
Mat3<double> work2(aat);
Vec3<double> w2;
Mat3<double> v2;
work2.eivec_sym(w2,v2,true);
cout <<w2<<endl<<sqrt(w2[0])<<" "<<sqrt(w2[1])<<" "<<sqrt(w2[2])<<" "<<endl<<endl<<v2<<endl;
NRMat<double> aa(a);
cout <<aa.nrows()<<" "<<aa.ncols()<<endl;
NRMat<double> uu(3,3),vv(3,3);
NRVec<double> ss(3);
singular_decomposition(aa,&uu,ss,&vv,0);
cout <<uu<<ss<<vv<<endl;
}
}