User`s guide

/ 2.<'-3x2 e; 0 rmm
@!i!)~(])(INEQ)CIJ(aX'+ bX' +cX+ d)
!I) (aX'+ bX' +cX+d e; 0)
21EJ831EJ
m ...
I · 2 b -3 IIIIiIr.
aX3+t.X2+cX+d~0
o
X=A.B~X
IEJI X=O,~~X
/ 3x>+3x2-x>0 Em
@!i!)~(])(INEQ)CIJ(aX'+ bX' +cX+d)
(])(aX'+ bX' +cX+ d > 0)
31EJ31EJ811EJ
Note: Solutions are displayed as shown
here when Linear Display is selected.
ID Math
I b 3 c _I '-"1
aX3+bX2+cX+d>0
o
m
A<X<B,C<X
A= -1.263762616
B= 0
C= 0.2637626156
Special Solution Display
."All Real Numbers" appears on the solution screen when the solution of an
inequality is all numbers.
x2 i: 0 rmm
@!i!)~ (]) (INEQ) (]) (aX' + bX + c)
!I) (aX' + bX + c e; 0)
1 IEJ 0 IEJ 0 IEJ IEJ
Ii)
Malll
All Real Numbers
."No-Solution" appears on the solution screen when no solution exists for
an inequality (such as X' < 0).
rU~VERfFY iVEfill:'l~c_~."--
VERIFY is a function you can use to verify whether an input equality or
inequality is true (indicated by TRUE) or false (indicated by FALSE). The
following shows the general procedure for using VERIFY.
/ To verify whether 4V9 =12 is true rmm
1. Press @!!I~ CIJ(VERIF) to enter the VERIFY Mode.
E-45
ID Malll
TRUE/FALSE
2. Input 4V9 = 12.
4GSJ9 <E>l!i!!IlII (VERIFY) (]) (=)12
. You can select the equality symbol or
inequality symbol from the menu that
appears when you press l!i!!IlII(VERIFY).
3. To verify, press IEJ.
IiJ M.th.
4./9=12
TRUE
You can input the following expressions for verification in the VERIFY
Mode.
.Equalities or inequalities that include one relational operator 4 = m,
4 '" 3, " >3, 1 + 2 :;; 5, (3 x 6) < (2 + 6) x 2, etc.
.Equalities or inequalities that include multiple relational operators 1 ;; 1 <
1 + 1, 3 < " < 4, 2' =2 + 2 =4, 2 + 2 =4 < 6, 2 + 3 = 5 '" 2 + 5 = 8, etc.
Note: . The verification result willcause 1 to be assigned to Ans memory
when TRUE and 0 when FALSE.
.The input expression can be a total of
99 bytes, including the lelt side, right side, and relational operators. .Any
variable (A, B, C, D, E, F, X, Y, M) input into an expression is treated as a
value, using the value currently assigned to the variable. .+R, Pol and Rec
functions cannot be used in an expression.
In the VERIFY Mode, the calculator performs a mathematical operation
on the input expression and then displays TRUE or FALSE based on the
result. Because of this, calculation error can occur or a mathematically
correct result may not be able to be displayed when the input calculation
expression includes calculation that approaches the singular point or
inflection point of a function, or when the input expression contains multiple
calculation operations.
Expression Input Precautions
The followingtypes of expressions cause a Syntax ERROR and cannot
be verified.
.An expression with nothing on the left side or right side (Example: =5..f'f)
.An expression in which a relational operator is inside of a fraction or function
(Example: 1 = 1, cos (8 ;a 9»
2
.Anexpression in whicha relationaloperator is enclosed in parentheses
(Example:8 < (9 < 10»
.An expression in which multiple relational operators that are not oriented
in the same direction (Example: 5 ;a 6 e; 4)
.An expression that contains two of the following operators in any combination
(Example: 4 < 6 '" 8)
. An expression that contains consecutive relational operators
(Example: 5 e; > 9)
E-46