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Jay Foad: Difference between revisions
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→Contributions: Remove unverifiable reference to magic arrays (which are unimplemented)
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With [[John Scholes]], Foad defined the [[identity element]] for [[Catenate]] in Dyalog and more generally [[Catenate]] [[reduction]] of an [[empty array]], a model based on but distinct from [[NARS2000]]'s. He was involved in the design of the [[At operator]], [[Where]], [[Interval Index]], and [[Nest]], and defined [[shy result]]s for [[system function]]s that previously lacked any result (as no-result functions are difficult to use in [[dfn]]s). Foad was involved in designing several extensions to Dyalog primitives, including high-rank [[Unique]] in [[Dyalog APL 17.0]] and the decision to allow duplicate left argument cells in [[Interval Index]] in [[Dyalog APL 17.1|17.1]]. | With [[John Scholes]], Foad defined the [[identity element]] for [[Catenate]] in Dyalog and more generally [[Catenate]] [[reduction]] of an [[empty array]], a model based on but distinct from [[NARS2000]]'s. He was involved in the design of the [[At operator]], [[Where]], [[Interval Index]], and [[Nest]], and defined [[shy result]]s for [[system function]]s that previously lacked any result (as no-result functions are difficult to use in [[dfn]]s). Foad was involved in designing several extensions to Dyalog primitives, including high-rank [[Unique]] in [[Dyalog APL 17.0]] and the decision to allow duplicate left argument cells in [[Interval Index]] in [[Dyalog APL 17.1|17.1]]. | ||
Foad was involved in the design of Dyalog's [[total array order]] along with [[Roger Hui]] and [[Adám Brudzewsky]], and the development of [[tolerant hashing]] for real and [[complex]] vector searches.<ref>[[Roger Hui|Hui, Roger]]. [https://www.jsoftware.com/papers/Hashing.htm "Hashing for Tolerant Index-Of"].</ref> He implemented [[hashed array]]s using <syntaxhighlight lang=apl inline>1500⌶</syntaxhighlight> after participating in their design | Foad was involved in the design of Dyalog's [[total array order]] along with [[Roger Hui]] and [[Adám Brudzewsky]], and the development of [[tolerant hashing]] for real and [[complex]] vector searches.<ref>[[Roger Hui|Hui, Roger]]. [https://www.jsoftware.com/papers/Hashing.htm "Hashing for Tolerant Index-Of"].</ref> He implemented [[hashed array]]s using <syntaxhighlight lang=apl inline>1500⌶</syntaxhighlight> after participating in their design. | ||
Foad helped improve testing while at Dyalog, including the use of [[wikipedia:Fuzzing|fuzz testing]] to identify crashes in obscure statements. | Foad helped improve testing while at Dyalog, including the use of [[wikipedia:Fuzzing|fuzz testing]] to identify crashes in obscure statements. | ||