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eigensolver for symmetric Mat3

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Jiri Pittner
2021-11-20 22:14:40 +01:00
parent 4e08955ed5
commit 30f4d29d82
3 changed files with 331 additions and 2 deletions
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4
vecmat3.h
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@@ -145,7 +145,9 @@ public:
//C-style IO
int fprintf(FILE *f, const char *format) const {int n= ::fprintf(f,format,q[0][0],q[0][1],q[0][2]); n+=::fprintf(f,format,q[1][0],q[1][1],q[1][2]); n+=::fprintf(f,format,q[2][0],q[2][1],q[2][2]); return n;};
int fscanf(FILE *f, const char *format) const {return ::fscanf(f,format,q[0][0],q[0][1],q[0][2]) + ::fscanf(f,format,q[1][0],q[1][1],q[1][2]) + ::fscanf(f,format,q[2][0],q[2][1],q[2][2]);};
void symmetrize(); //average offdiagonal elements
void eival_sym(Vec3<T> &w) const; //only for real symmetric matrix, symmetry is not checked
void eivec_sym(Vec3<T> &w, Mat3 &v) const; //only for real symmetric matrix, symmetry is not checked
};