Is the J programming language free for commercial use?

Jd is free for non-commercial use. Jd lives openly and dynamically in the J execution and development environment, so that the full power of J is available to the application developer. For example, Jd columns are mapped to J nouns, so built-in J primitives can apply directly to the data.

What is the purpose of the programming language J?

J is a high-level, general-purpose programming language that is particularly suited to the mathematical, statistical, and logical analysis of data. It is a powerful tool for developing algorithms and exploring problems that are not already well understood.

Which is the latest version of the J language?

The source is provided under both commercial and GPL 3 licenses. J is easy to install, has a small footprint, and has direct access to tutorials and documentation. The latest release is J902 with several new language features and performance improvements, available from Dec 2020. See J902 Release Notes.

Which is an example of a J primitive?

For example, Jd columns are mapped to J nouns, so built-in J primitives can apply directly to the data. It works well with large tables (millions of rows to billions), multiple tables connected by joins, structured data, numerical data, and complex queries and aggregations.

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