User Manual

det()
Catalog >
det(squareMatrix[, Tolerance]) ⇒
expression
Returns the determinant of squareMatrix.
Optionally, any matrix element is treated as
zero if its absolute value is less than
Tolerance. This tolerance is used only if the
matrix has floating-point entries and does
not contain any symbolic variables that
have not been assigned a value. Otherwise,
Tolerance is ignored.
• If you use /· or set the Auto or
Approximate mode to Approximate,
computations are done using floating-
point arithmetic.
• If Tolerance is omitted or not used, the
default tolerance is calculated as:
5E⁻14 •max(dim(squareMatrix))
•rowNorm(squareMatrix)
diag()
Catalog >
diag(List) ⇒ matrix
diag(rowMatrix) ⇒ matrix
diag(columnMatrix) ⇒ matrix
Returns a matrix with the values in the
argument list or matrix in its main
diagonal.
diag(squareMatrix) ⇒ rowMatrix
Returns a row matrix containing the
elements from the main diagonal of
squareMatrix.
squareMatrix must be square.
dim()
Catalog >
dim(List) ⇒ integer
Returns the dimension of List.
dim(Matrix) ⇒ list
Returns the dimensions of matrix as a two-
element list {rows, columns}.
Alphabetical Listing 39