📄 mat_gf2e.txt
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/**************************************************************************\MODULE: mat_GF2ESUMMARY:Defines the class mat_GF2E.\**************************************************************************/#include <NTL/matrix.h>#include <NTL/vec_vec_GF2E.h>NTL_matrix_decl(GF2E,vec_GF2E,vec_vec_GF2E,mat_GF2E)NTL_io_matrix_decl(GF2E,vec_GF2E,vec_vec_GF2E,mat_GF2E)NTL_eq_matrix_decl(GF2E,vec_GF2E,vec_vec_GF2E,mat_GF2E)void add(mat_GF2E& X, const mat_GF2E& A, const mat_GF2E& B); // X = A + Bvoid sub(mat_GF2E& X, const mat_GF2E& A, const mat_GF2E& B); // X = A - B = A + Bvoid negate(mat_GF2E& X, const mat_GF2E& A); // X = - A = Avoid mul(mat_GF2E& X, const mat_GF2E& A, const mat_GF2E& B); // X = A * Bvoid mul(vec_GF2E& x, const mat_GF2E& A, const vec_GF2E& b); // x = A * bvoid mul(vec_GF2E& x, const vec_GF2E& a, const mat_GF2E& B); // x = a * Bvoid mul(mat_GF2E& X, const mat_GF2E& A, const GF2E& b);void mul(mat_GF2E& X, const mat_GF2E& A, GF2 b);void mul(mat_GF2E& X, const mat_GF2E& A, long b);// X = A * bvoid mul(mat_GF2E& X, const GF2E& a, const mat_GF2E& B);void mul(mat_GF2E& X, GF2 a, const mat_GF2E& B);void mul(mat_GF2E& X, long a, const mat_GF2E& B);// X = a * Bvoid determinant(GF2E& d, const mat_GF2E& A);GF2E determinant(const mat_GF2E& a);// d = determinant(A)void transpose(mat_GF2E& X, const mat_GF2E& A);mat_GF2E transpose(const mat_GF2E& A);// X = transpose of Avoid solve(GF2E& d, vec_GF2E& X, const mat_GF2E& A, const vec_GF2E& b);// A is an n x n matrix, b is a length n vector. Computes d =// determinant(A). If d != 0, solves x*A = b.void inv(GF2E& d, mat_GF2E& X, const mat_GF2E& A);// A is an n x n matrix. Computes d = determinant(A). If d != 0,// computes X = A^{-1}.void sqr(mat_GF2E& X, const mat_GF2E& A);mat_GF2E sqr(const mat_GF2E& A);// X = A*A void inv(mat_GF2E& X, const mat_GF2E& A);mat_GF2E inv(const mat_GF2E& A);// X = A^{-1}; error is raised if A is singularvoid power(mat_GF2E& X, const mat_GF2E& A, const ZZ& e);mat_GF2E power(const mat_GF2E& A, const ZZ& e);void power(mat_GF2E& X, const mat_GF2E& A, long e);mat_GF2E power(const mat_GF2E& A, long e);// X = A^e; e may be negative (in which case A must be nonsingular).void ident(mat_GF2E& X, long n);mat_GF2E ident_mat_GF2E(long n);// X = n x n identity matrixlong IsIdent(const mat_GF2E& A, long n);// test if A is the n x n identity matrixvoid diag(mat_GF2E& X, long n, const GF2E& d);mat_GF2E diag(long n, const GF2E& d);// X = n x n diagonal matrix with d on diagonallong IsDiag(const mat_GF2E& A, long n, const GF2E& d);// test if X is an n x n diagonal matrix with d on diagonallong gauss(mat_GF2E& M);long gauss(mat_GF2E& M, long w);// Performs unitary row operations so as to bring M into row echelon// form. If the optional argument w is supplied, stops when first w// columns are in echelon form. The return value is the rank (or the// rank of the first w columns).void image(mat_GF2E& X, const mat_GF2E& A);// The rows of X are computed as basis of A's row space. X is is row// echelon formvoid kernel(mat_GF2E& X, const mat_GF2E& A);// Computes a basis for the kernel of the map x -> x*A. where x is a// row vector.// miscellaneous:void clear(mat_GF2E& a);// x = 0 (dimension unchanged)long IsZero(const mat_GF2E& a);// test if a is the zero matrix (any dimension)// operator notation:mat_GF2E operator+(const mat_GF2E& a, const mat_GF2E& b);mat_GF2E operator-(const mat_GF2E& a, const mat_GF2E& b);mat_GF2E operator*(const mat_GF2E& a, const mat_GF2E& b);mat_GF2E operator-(const mat_GF2E& a);// matrix/scalar multiplication:mat_GF2E operator*(const mat_GF2E& a, const GF2E& b);mat_GF2E operator*(const mat_GF2E& a, GF2 b);mat_GF2E operator*(const mat_GF2E& a, long b);mat_GF2E operator*(const GF2E& a, const mat_GF2E& b);mat_GF2E operator*(GF2 a, const mat_GF2E& b);mat_GF2E operator*(long a, const mat_GF2E& b);// matrix/vector multiplication:vec_GF2E operator*(const mat_GF2E& a, const vec_GF2E& b);vec_GF2E operator*(const vec_GF2E& a, const mat_GF2E& b);// assignment operator notation:mat_GF2E& operator+=(mat_GF2E& x, const mat_GF2E& a);mat_GF2E& operator-=(mat_GF2E& x, const mat_GF2E& a);mat_GF2E& operator*=(mat_GF2E& x, const mat_GF2E& a);mat_GF2E& operator*=(mat_GF2E& x, const GF2E& a);mat_GF2E& operator*=(mat_GF2E& x, GF2 a);mat_GF2E& operator*=(mat_GF2E& x, long a);vec_GF2E& operator*=(vec_GF2E& x, const mat_GF2E& a);
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