f<> ( r1 r2 -- fl )

published: 9 January 2022 / updated 2 December 2023

fl is true if r1 <> r2.

Example:

3.2e 5.25e f<>   .  \ display -1 
5.25e 5.25e f<>  .  \ display 0

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fl is true if r1 <> r2.

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