User Manual

Chapter 15: Equation Solving
209
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 209 of 1215EQSOLV.DOC TI-86, Chap 15, US English Bob Fedorisko Revised: 02/13/01 2:34 PM Printed: 02/13/01 3:04 PM Page 209 of 12

Enter a real or complex value (or an
expression that resolves to one) for each
coefficient in the equation and for
b
1
,
which is the solution to that equation.
9
#
8
#
7
#
2

Display the coefficients-entry screen for
the second and third equation, and enter
values for them.
# (or b or
')
5
# a
6
# a
4
#
2
#
1
#
5
#
9
#
7

Solve the equations. The results of the
polynomial are calculated and displayed
on the result screen. Results are not stored
to variables and cannot be edited. The
SIMULT RESULT
menu is displayed.
*
To move from the
coefficients-entry editor for
one equation to the editor for
another equation, select
PREV
or
NEXT
.
To move among coefficients,
press
#
,
$
, or
b
. From
the last or first coefficient,
these keys move to the next
or previous coefficients-entry
screen, if possible.
Ellipses indicate that a value
continues beyond the screen.
Press
"
and
!
to scroll the
value.