Edsger W. Dijkstra: Difference between revisions
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{{quote|Dijkstra: How would you represent a more complex operation, for example, the sum of all elements of a matrix M which are equal to the sum of the corresponding row and column indices?<br/> | {{quote|Dijkstra: How would you represent a more complex operation, for example, the sum of all elements of a matrix M which are equal to the sum of the corresponding row and column indices?<br/> | ||
Iverson: <math>++/(M=⍳^1\,^∘ _ +⍳^1)//M</math>}} | Iverson: <math>++/(M=⍳^1\,^∘ _ +⍳^1)//M</math> | ||
[the initial <math>+</math> is likely a transcription error]}} | |||
In 2001, Dijkstra cited [[Alan Perlis]] as the main source for his exposure to APL.<ref name="interview2001">Misa, Thomas. [https://cacm.acm.org/magazines/2010/8/96632-an-interview-with-edsger-w-dijkstra/fulltext An Interview With Edsger W. Dijkstra]</ref> | In 2001, Dijkstra cited [[Alan Perlis]] as the main source for his exposure to APL.<ref name="interview2001">Misa, Thomas. [https://cacm.acm.org/magazines/2010/8/96632-an-interview-with-edsger-w-dijkstra/fulltext An Interview With Edsger W. Dijkstra]</ref> | ||