Texas Instruments TI-86 - Manual (Page 222)

210
Chapter 15: Equation Solving
15EQSOLV.DOC TI-86, Chap 15, US English Bob Fedorisko Revised: 02/13/01 2:34 PM Printed: 02/13/01 3:04 PM Page 210 of 12 15EQSOLV.DOC TI-86, Chap 15, US English Bob Fedorisko Revised: 02/13/01 2:34 PM Printed: 02/13/01 3:04 PM Page 210 of 12 15EQSOLV.DOC TI-86, Chap 15, US English Bob Fedorisko Revised: 02/13/01 2:34 PM Printed: 02/13/01 3:04 PM Page 210 of 12
Storing Equation Coefficients and Results to Variables
♦
To store coefficients a
1,1
; a
1,2
;...; a
n , n
to an n×n matrix, select STOa .
♦
To store solutions b
1
,b
2
,..., b
n
to a vector of dimension n, select STOb .
♦
To store the results x
1
, x
2
,..., x
n
to a vector of dimension n, select STOx .
To store a single value on the coefficients-entry screen or result screen, follow these steps.
ᕡ Move the cursor to the = sign next to the
coefficient or result you want to store.
#
ᕢ Display the variable Name= prompt.
ALPHA-lock is on.
ᕣ Enter the variable to which you want to
store the value.
ᕤ Store the value. The variable name
becomes an item on the VARS REAL
screen or VARS CPLX screen.
X
ã R д г E д г S д г U д г L д
г T ä 1 2
b
To return to the coefficients-entry screen, where you can edit coefficients and calculate
new solutions, select
COEFS from the SIMULT RESULT menu.
To switch to the coefficients-
entry screen, select COEFS
from the SIMULT RESULT
menu.
To solve equations
simultaneously on the home
screen or in a program,
select simult( from the
CATALOG
.