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Using VERIFY (VERIF)
VERIFY is a function you can use to verify whether an input equality or
inequality is true (indicated by TRUE) or false (indicated by F
ALSE). The
following shows the general procedure for using VERIFY.
Example: To verify whether 4√
9 = 12 is true (MthIO-MathO)
1. Press (VERIF) to enter the VERIFY Mode.
2. Input 4√9 = 12.
4 9 (VERIF) (=) 12
• You can select the equality symbol or inequality symbol from the menu
that appears when you press (VERIFY).
3. To verify, press .
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, 2
2
= 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 F
ALSE.
• The input expression can be a total of 99 bytes, including the left side, right side, and
relational operators.
85
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