HP Prime Graphing Calculator - Manual (Page 487)

Matrices 481
Diagonal Given a list, returns a matrix with the list elements along
its diagonal and zeroes elsewhere. Given a matrix, returns
a vector of the elements along its diagonal.
diag(list) or diag(matrix)
Example:
diag returns
Cholesky For a numerical symmetric matrix A, returns the matrix L
such that A=L*tran(L).
cholesky(matrix)
Example:
In CAS view, cholesky returns
after simplification
Hermite Hermite normal form of a matrix with coefficients in Z:
returns U,B such that U is invertible in Z, B is upper
triangular and B=U*A.
ihermite(Mtrx(A))
Example:
ihermite returns
1 2
3 4






1 4
3 1
1 4






3 0
3
3
----
33
3
------










1 2 3
4 5 6
7 8 9








3 – 1 0
4 1 – 0
1 – 2 1 –
1 1 – 3 –
0 3 6
0 0 0
,