39
edits
Equal to: Difference between revisions
Jump to navigation
Jump to search
Added Reference for Comparison Tolerance
m (Text replacement - "</source>" to "</syntaxhighlight>") Tags: Mobile edit Mobile web edit |
(Added Reference for Comparison Tolerance) |
||
| Line 1: | Line 1: | ||
{{Built-in|Equal to|<nowiki>=</nowiki>}} is a [[comparison function]] which tests whether argument elements are [[ | {{Built-in|Equal to|<nowiki>=</nowiki>}} is a [[comparison function]] which tests whether argument elements are tolerantly<ref>[[Robert Bernecky|Bernecky, Robert]]. [https://www.jsoftware.com/papers/satn23.htm "Comparison Tolerance"]. Sharp APL Technical Notes. 1977-06-10;.</ref> equal to each other: it returns 1 if the [[element]]s being compared [[match]] and 0 if they do not. It is the [[Not|negation]] of [[Not Equal to]] (<syntaxhighlight lang=apl inline>≠</syntaxhighlight>). | ||
APL's <syntaxhighlight lang=apl inline>=</syntaxhighlight> differs from the usage of <math>=</math> in [[Comparison with traditional mathematics|traditional mathematical notation]] by having an implied [[Ken_Iverson#Iverson_bracket|Iverson bracket]]. Thus, <syntaxhighlight lang=apl inline>i=j</syntaxhighlight> is APL is equivalent to <math>[i=j]</math> or <math>\delta_{ij}</math> ([[wikipedia:Kronecker delta|Kronecker delta]]) in mathematics. | APL's <syntaxhighlight lang=apl inline>=</syntaxhighlight> differs from the usage of <math>=</math> in [[Comparison with traditional mathematics|traditional mathematical notation]] by having an implied [[Ken_Iverson#Iverson_bracket|Iverson bracket]]. Thus, <syntaxhighlight lang=apl inline>i=j</syntaxhighlight> is APL is equivalent to <math>[i=j]</math> or <math>\delta_{ij}</math> ([[wikipedia:Kronecker delta|Kronecker delta]]) in mathematics. | ||
| Line 64: | Line 64: | ||
== External links == | == External links == | ||
== References == | |||
<references /> | |||
=== Documentation === | === Documentation === | ||