APL, or A Programming Language, is a high-level programming language known for its concise syntax and powerful array manipulation capabilities. Developed by Kenneth E. Iverson in the 1960s, APL uses special symbols to represent operations, allowing programmers to express complex ideas in fewer lines of code. It is particularly well-suited for mathematical and statistical computations. APL is often used in fields such as finance, engineering, and data analysis due to its efficiency in handling large datasets. The language supports interactive programming, enabling users to experiment and visualize results quickly. Its unique approach has influenced various other programming languages and tools.