Texas Instruments TI-86 - Manual (Page 293)

Chapter 20: A to Z Function and Instruction Reference
281
20ATOZ.DOC TI-86, Chap 20, US English Bob Fedorisko Revised: 02/13/01 2:42 PM Printed: 02/13/01 3:05 PM Page 281 of 118 20ATOZ.DOC TI-86, Chap 20, US English Bob Fedorisko Revised: 02/13/01 2:42 PM Printed: 02/13/01 3:05 PM Page 281 of 118
det
MATRX MATH menu
det squareMatrix
Returns the determinant of squareMatrix. The result is
real for a real matrix, complex for a complex matrix.
[[1,2][3,4]]¶MAT b [[1 2]
[3 4]]
det MAT b L 2
DifEq
† mode screen
DifEq
Sets differential equation graphing mode.
dim
MATRX OPS menu
VECTR OPS menu
dim matrix
Returns a list containing the dimensions (number of
rows and columns) of a real or complex matrix.
dim vector
Returns the length (number of elements) of a real or
complex vector.
[[2,7,1][ L 8,0,1]]¶MAT b
[[2 7 1]
[ L 8 0 1]]
dim MAT b {2 3}
dim [ L 8,0,1] b 3
¶ dim
X , then MATRX OPS
menu
X , then VECTR OPS
menu
{ rows , columns } ¶ dim matrixName
If matrixName does not exist, creates a new matrix
with the specified dimensions and fills it with zeros.
If matrixName exists, redimensions that matrix to the
specified dimensions. Existing elements within the new
dimensions are not changed; elements outside the new
dimensions are deleted. If additional elements are
created, they are filled with zeros.
[[2,7][ L 8,0]]¶MAT b
[[2 7]
[ L 8 0]]
{3,3}¶dim MAT b {3 3}
MAT b [[2 7 0]
[ L 8 0 0]
[0 0 0]]