diagonal of symbolic matrix
v: Diag( A, k = 0 ) A: Diag( v, k = 0 )
matrix of symbolic scalars
vector of symbolic scalars
integer
Returns the main diagonal of a matrix A as vector v.
Returns a lower (k < 0) or upper (k > 0) diagonal of a matrix A as vector v. For k = 0 the main diagonal is returned (cf. above).
Creates a diagonal matrix with the elements of the vector v on the main diagonal.
Creates a diagonal matrix with the elements of the vector v on a lower (k < 0) or upper (k > 0) diagonal. For k = 0 the elements of v are on the main diagonal (cf. above).
// create a matrix A = %(Mat("a",3,3)) // main diagonal of A Diag(A) // first upper diagonal Diag(A,1) // second lower diagonal Diag(A,-2) // create a vector a = %(Vec("a",3)) // matrix with "a" on main diagonal Diag(a) // matrix with "a" on 2nd upper diagonal Diag(a,2) // matrix with "a" on 1st lower diagonal Diag(a,-1) // clean up reset(); clear A a; |  |  |
SymEngine: C++ library for fast symbolic manipulation.