2.Input 4'9 = 12.
4 !9 e16(VERIFY) 1(=)12
•You can select the equality symbol or inequality symbol from the menu that appears when you press 16(VERIFY).
3.To verify, press =.
Math 
You can input the following expressions for verification in the VERIFY Mode.
•Equalities or inequalities that include one relational operator 4 = 16, 4 3, π 3, 1 + 2 5, (3 × 6) (2 + 6) × 2, etc.
•Equalities or inequalities that include multiple relational operators 1 1 1 + 1, 3 π 4, 22 = 2 + 2 = 4, 2 + 2 = 4 6, 2 + 3 = 5 2 + 5 = 8, etc.
Note: • The verification result will cause 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 left 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 following types of expressions cause a Syntax ERROR and cannot be verified.
•An expression with nothing on the left side or right side (Example: = 5'7 )
•An expression in which a relational operator is inside of a fraction or function (Example: 1 = 1, cos (8 9))
2
•An expression in which a relational operator 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 6 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 9)