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MARPLE Documentation

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MARPLE Documentation

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Getting Started
Getting Started
Tutorials
Tutorials
- For Beginners
  For Beginners
- For APL Programmers
  For APL Programmers
- Intermediate Topics
  Intermediate Topics
- Worked Examples
  Worked Examples
How-To Guides
How-To Guides
- Working with Arrays
  Working with Arrays
- Using the Rank Operator
  Using the Rank Operator
- Strings and Text
  Strings and Text
- File I/O
  File I/O
- Error Handling
  Error Handling
- Namespaces and Imports
  Namespaces and Imports
- Calling Python from APL
  Calling Python from APL
- Performance
  Performance
Reference
Reference
- Primitive Functions
  Primitive Functions
- Operators
  Operators
- Direct Definition
  Direct Definition
  - Dfns
  - Dops
  - Guards
  - Recursion
- Array Model
  Array Model
- Indexing
  Indexing
- System Features
  System Features
  - System Variables
  - System Commands
- Standard Library
  Standard Library
- Glyph Input
- Error Messages
- Grammar
Explanation
Explanation
Troubleshooting
Troubleshooting
Appendices
Appendices

Indexing¶

From (⌷) — functional leading-axis selection
Bracket Indexing — M[i;j] syntax
Indexed Assignment — M[i;j] ← value

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