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478 Matrices
by the number of elements (e) instead of the number of
rows and columns.
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.
MAKEMAT(√2,2) returns the 2-element vector
[√2,√2].
Identity Identity matrix. Creates a square matrix of dimension
size × size whose diagonal elements are 1 and off-
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.
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
710
071
007