Less than or Equal to: Difference between revisions

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{{Built-in|Less than or Equal to|<nowiki>≤</nowiki>}} is a [[comparison function]] which tests whether the left [[argument]] is [[Tolerant comparison|tolerantly]] less than or equal to the right argument, returning 1 if this is the case and 0 otherwise. It is the [[Not|negation]] of [[Less than]] (<source lang=apl inline><</source>), and in fact was called '''Not greater''' in [[APL\360]].
{{Built-in|Less than or Equal to|<nowiki>≤</nowiki>}} is a [[comparison function]] which tests whether the left [[argument]] is [[Tolerant comparison|tolerantly]] less than or equal to the right argument, returning 1 if this is the case and 0 otherwise. It is the [[Not|negation]] of [[Less than]] (<source lang=apl inline><</source>), and in fact was called '''Not greater''' in [[APL\360]].
== Boolean function ==
{{Main|Boolean function}}
When used as a [[Boolean function]] (that is, with argument consisting entirely of 0s and 1s), it represents [[wikipedia:converse implication|converse implication]]:
{|class=wikitable
!<source lang=apl inline>></source>!!<source lang=apl inline>0</source>!!<source lang=apl inline>1</source>
|-
!<source lang=apl inline>0</source>
|<source lang=apl inline>1</source>||<source lang=apl inline>1</source>
|-
!<source lang=apl inline>1</source>
|<source lang=apl inline>1</source>||<source lang=apl inline>0</source>
|}


== External links ==
== External links ==

Revision as of 08:26, 29 March 2020

Main article: Comparison function

Less than or Equal to () is a comparison function which tests whether the left argument is tolerantly less than or equal to the right argument, returning 1 if this is the case and 0 otherwise. It is the negation of Less than (<), and in fact was called Not greater in APL\360.

Boolean function

Main article: Boolean function

When used as a Boolean function (that is, with argument consisting entirely of 0s and 1s), it represents converse implication:

> 0 1
0 1 1
1 1 0

External links

Documentation


APL built-ins [edit]
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