HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 582)

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MAKEMAT(expression, rows, columns)

MAKEMAT(expression, elements)

Examples:

MAKEMAT(0,3,3) returns a 3 × 3 zero matrix, [[0,0,0],[0,0,0],[0,0,0]].

MAKEMAT(√2,2,3) returns the 2 × 3 matrix [[√2,√2,√2],[√2,√2,√2]].

MAKEMAT(I+J–1,2,3) returns the 2 × 3 matrix [[1,2,3],[2,3,4]]

Note in the example above that each element is the sum of the row number and column number minus 1.

Identity

Identity matrix. Creates a square matrix of dimension size × size whose diagonal elements are 1 and

odiagonal elements are zero.

IDENMAT(size)

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. Given only one integer,

returns a vector of that length, lled with random integers. Given an optional additional pair of integers,

returns a matrix of the random numbers restricted to the interval dened by those integers.

randMat([MatrixName],n,[m], [lower, upper})

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 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)

Example:

534 Chapter 26 Matrices

1 2 ... 577 578 579 580 581 582 583 584 585 586 587 ... 700 701

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