Canon F-792SGA Instructions Manual page 65

Special Solution Display
"All" appears on the solution screen when the solution of an
inequality is all numbers.
2
Example: x ≥ 0
(INEQ mode 1: Quad)
Key in operation Display
Apps
All
"No-Solution" appears on the solution screen when no solution
exists for an inequality (such as x 2 < 0)
2
Example: x + 3 ≤ 0
Key in operation Display
Apps
No-Solution
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