HP NW280AAABA Manual do Utilizador descarregar pdf (Página 483)

100

101

Matrices 477

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:

JordanBlock(7,3) returns

Hilbert Given a positive integer, n, returns the n

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)

Example:

In CAS view, hilbert(4) returns

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

710

071

007

1cos 1sin–

1sin 1cos

1 2 ... 478 479 480 481 482 483 484 485 486 487 488 ... 615 616

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