Texas Instruments TI-86 - Manual (Page 192)

180
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 180 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 180 of 10
Creating a Matrix on the Home Screen
ᕡ Define the start of the matrix with ã, and then
define the start of the first row with another
ã. Enter each element for the row, separating
them with commas. Define the end of the
first row with
ä.
- „ - „
2 P 4 P 6 P
8 -…
ᕢ Define the start of each subsequent row with
ã . Enter the row elements, separating each
from the next with a comma. Define the end
of each row with
ä. Then define the end of
the matrix with ä.
- „ a 1 P
a 3 P a 5 P
a 7 - …
-…
ᕣ Store the matrix to a matrix name. Either
enter a name from one to eight characters
long, starting with a letter, or select a name
from the
MATRX NAMES menu. The matrix
is displayed. If newly created, the matrix
name becomes a
MATRX NAMES menu item.
X - n
ã
M д г A д г T ä
1 1 1
b
Creating a Complex Matrix
If any matrix element is complex, all elements of the matrix are displayed as complex. For
example, when you enter the matrix
[[1,2][5,(3,1)]] , the TI -86 displays [[(1,0) (2,0)][(5,0) (3,1)]] .
To create a complex matrix from two real matrices with the same dimensions, the syntax is:
realMatrix +(0,1) imaginaryMatrix¶complexMatrixName
realMatrix contains the real part of each element and imaginaryMatrix contains the
imaginary part of each element.
The close bracket is not
necessary when it precedes
X .
To delete a matrix name from
memory, use the MEM
DELETE:MATRX
screen
(Chapter 17).