RPL

RPL is a programming language designed for use in scientific and engineering calculations. It is based on the APL programming language and shares many of its features, including its use of array operations and vector functions. RPL was developed by Hewlett-Packard (HP) in the late 1970s and was originally used only on HP's scientific calculators. In the early 1990s, HP released a version of RPL for its HP-UX operating system, and in the mid-1990s, the language was ported to Windows. RPL is also available on HP's webOS platform. RPL is a powerful language that allows users to perform complex calculations with a few simple commands. Its use of array operations makes it well suited for scientific and engineering applications. However, RPL's syntax can be challenging for beginners, and its lack of built-in graphics capabilities makes it less suitable for applications that require visual output.