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Explore the practical applications and benefits of representing hierarchical data structures as vectors in APL programming through this 27-minute conference talk from DYNA Fall 2025. Learn fundamental tree-wrangling operations and examine real-world case studies that demonstrate when vectorised trees provide advantages over traditional approaches. Discover how parent vectors can be applied to static analysis in Co-dfns, file system queries, particle simulations, and disjoint set data structures. Gain insights into array-oriented thinking for making complex algorithms more efficient and elegant, with practical examples that illustrate both the strengths and limitations of this trendy APL technique. Follow along as the presentation covers basic tree representation concepts, operational examples, and concludes with an interactive Q&A session to deepen your understanding of when to implement vectorised tree structures in your own APL projects.
