272
DET(matrix)
This function finds the determinant of a square
matrix. See page 174 for an example of its use
in finding an inverse matrix.
Eg. If
23
15
A
=
−
then find det(A).
Ans: det (A) = 2x5-3x(-1)
= 13
See also: INVERSE, RREF
DOT([vector],[vector])
This function returns the dot product of two vectors. Vectors for this function
are written as single row matrices.
For example,
3
(3,4) or
4
a
=
would be written as [3,4].
See page 175 for a worked example.
EIGENVAL
See User’s manual
EIGENVV
See User’s manual
IDENTMAT(size)
This function creates an n x n square matrix which is an identity matrix. For
example, IDENTMAT(4) would produce a 4x4 identity matrix for use or
storage.
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