Texas Instruments TI-86 - Manual (Page 196)

184
Chapter 13: Matrices
13MATRX.DOC TI-86, Chap 13, US English Bob Fedorisko Revised: 02/13/01 2:32 PM Printed: 02/13/01 3:03 PM Page 184 of 10 13MATRX.DOC TI-86, Chap 13, US English Bob Fedorisko Revised: 02/13/01 2:32 PM Printed: 02/13/01 3:03 PM Page 184 of 10
The MATRX OPS (Operations) Menu - ‰ )
NAMES EDIT MATH OPS CPLX
dim Fill ident ref rref 4 aug rSwap rAdd multR mRAdd
4 randM
dim matrix Returns the dimensions of matrix as a list { rows columns }
{ rows , columns } ¶ dim matrixName Creates a new matrixName of the specified dimensions; each
element is 0
{ rows , columns } ¶ dim matrixName Redimensions matrixName to the specified dimensions
Fill( number , matrixName ) Stores a real or complex number to each matrixName element
ident dimension Returns the square identity matrix of dimension × dimension
ref matrix Returns the row-echelon form of matrix
rref matrix Returns the reduced row-echelon form of matrix
aug( matrixA , matrixB ) Concatenates matrixA and matrixB
aug( matrix , vector ) Concatenates matrix and vector
rSwap( matrix , rowA , rowB ) Returns a matrix after swapping rowA and rowB of matrix
rAdd( matrix , rowA , rowB ) Returns matrix with (rowA+rowB) of matrix stored in rowB
multR( number , matrix , row ) Returns matrix with (row¹number) stored in row
mRAdd( number , matrix , rowA , rowB ) Returns matrix with ((rowA¹number)+rowB) stored in rowB
randM( rows , columns ) Creates a matrix of specified dimensions with random elements
Press X to enter the ¶
symbol after the close brace.
When you use aug(, the
number of rows in
matrixA
must equal the number of
rows in
matrixB or the
number of elements in vector .
Elements of matrices created
with randM( are integers
‚L 9
and  9.