HP Prime Graphing NW280AAABA manual JordanBlockExpr,n, JordanBlock7,3 returns 0 7 1 0 0, Hilbertn

Random Given two integers, n and m, and a matrix name, creates an n x m matrix that contains random integers in the range −99 through 99 with a uniform distribution and stores it in the matrix name.

randMat(MatrixName,n,m)

Example:

RANDMAT(M1,2,2) returns a 2x2 matrix with random integer elements, and stores it in M1.

Jordan Returns a square nxn matrix with expr on the diagonal, 1 above and 0 everywhere else.

JordanBlock(Expr,n)

Example:

7 1 0 JordanBlock(7,3) returns 0 7 1 0 0 7

Hilbert Given a positive integer, n, returns the nth order Hilbert matrix. Each element of the matrix is given by the formula 1/(j+k-1) where j is the row number and k is the column number.

hilbert(n)		1	1
Example:	1			1
		-	-	-
		2	3	4
	1	1 1		1
In CAS view, hilbert(4) returns	- - - -
	2 3 4			5
	1	1	1	1
	-	-	-	-
	3	4	5	6
	1	1	1	1
	-	-	-	-
	4	5	6	7

Isometric Matrix of an isometry given by its proper elements.

mkisom(vector,sign(1 or -1))

Example:

In CAS view, mkisom([1,2],1) returns

cos(1) –sin(1)sin(1) cos(1)

Matrices 477