Keyboard Access:obj obj 0 or 1HP-28: the ≠ key HP48S: [alpha] RS-1 PRG TEST NXT HP48G: [alpha] RS-1 PRG TEST HP49/50: LS-[+/–] LS-PRG TEST «TESTS» NXTNot Equal function: Tests whether the level 2 object is not equal to the level 1 object.
If the two objects are of different types, then always returns 1, similar to . However, when the object types are the same, is not always the same as ; for example:0 (false, because they are equal) 1 (true, because they are not the same)The function follows the “0 if false, 1 if true” rule. It is intended for use in program branching, but it can be used inside algebraic objects for “conditional calculations” without any program branching required.
Examples:1 (true, because 5 is not = 9) 0 (false, because 5 = 5) 1 (true, because 5 is not = 2) returns A if C=D, or A+B if C≠D. same as above. same as above (because automatically does ).HP49/50 anomaly:
0 (Wrong! They are in fact unequal, since matrix multiplication is not commutative.)
HP49G bug: 0 (should be )
This bug is not present in the HP49G+ or HP50G.
HP49/50 maximum integer inputs: no limit.