The Array Cast

Fold and Scan

Apr 29, 2023

01:19:37

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Episode notes

Introduction

3min

How to Make the Transition From One Potato to Potato Scalar Programming in the Show

2min

Version Numbers for the CPQ and Interpreter

2min

The Differences Between BQN and K Slash Q

4min

The Differences Between Scan and Fold in APL

3min

The Math Reason for Wanting a Right to Left Fold

2min

How to Write Alternating Sums in APL

2min

The Difference Between K and Q in Computer Languages

2min

How to Use a Fold to Control Your Program Flow

2min

10.

How to Solve a Cadain Algorithm With a Single Fold Primitive

2min

11.

How to Do a Scan That Matches APL in J

2min

12.

The J Fold and C Plus Plus Algorithm

2min

13.

The Advantages of Coding in Array Languages

2min

14.

How the Queue Scanned Works

2min

15.

The Convergence Form of the Scan Operator

4min

16.

The Problem With the Fixed Point Algorithm in K and Q

2min

17.

The Importance of Comparing Power Functions

2min

18.

How to Solve a J Problem Using a Folder

2min

19.

The Advantages of Array Languages

2min

20.

The Limits of a Language Is the Border of My Imagination

2min

21.

How to Split an Array Algorithm Into Smaller Arrays

2min

22.

The Importance of Optimization in Arrays

3min

23.

The Importance of Thunks in Collection Oriented Programming

3min

24.

The Importance of Fusion in Parallel Execution

2min

25.

How to Compile a Sequence of Streams

2min

26.

The Relationship Between Scan and Reduce in APL

1min

27.

The Advantages of Prefixing the Identity Elements in Binary Operations

2min

28.

The Importance of an Array Language

4min

29.

The Relationship Between a Scan and a Fold

2min

30.

The Problem With Folds in C++

4min

31.

The Power of Simple Languages

2min

32.

The Limits of a Library in J

3min

33.

How to Solve a Problem in an Array Language With Heat Performance

2min

34.

How to Find the Smallest Window at Every Time

2min

35.

How to Find the Maximum Overall for the Heap Solution

2min

36.

O of a Is the Sequence.

2min

37.

Cadain's Algorithm: A Good Solution?

2min

Array Cast - April 28, 2023
Show Notes

Thanks to Bob Therriault, Marshall Lochbaum, and Adám Brudzewsky for gathering these links:

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The Array Cast

Fold and Scan

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