elegant is a flexible, SDDS-compliant accelerator simulation code used at the Advanced Photon Source (APS) for circular and one-pass machines. It supports 6-D tracking using matrices up to third order, canonical integration, and numerical integration. It includes standard beamline elements, coherent synchrotron radiation, wakefields, rf elements, kickers, apertures, scattering, and more. It performs tracking with and without errors, optimization of tracked properties, computation and optimization of Twiss parameters, radiation integrals, matrices, and floor coordinates. It supports orbit/trajectory, tune, and chromaticity correction. It is fully compliant with the Self Describing Data Sets (SDDS) file protocol, allowing users to prepare scripts for flexible and automated simulations. It is well-suited for multistage and concurrent simulations on multiple workstations. elegant is driven by a command file containing namelist-like commands and optional comments. It requires a lattice file, similar to MAD, with variations in capabilities and elements. Output includes text output and SDDS files. Input is provided via SDDS files. elegant has no embedded postprocessing or graphics support, relying on the SDDS Toolkit for these tasks. The Toolkit provides a powerful system for data analysis and display, and is used with elegant for postprocessing and displaying results. elegant supports various accelerator elements, including beam-transport elements, rf cavities, time-dependent elements, collective effects, coherent synchrotron radiation, intra-beam scattering, and beam diagnostics. It provides output files for various analyses, including Twiss parameters, transport matrices, and orbit/trajectory data. It supports optimization of beam properties, tracking with various methods, and simulation of complex scenarios. elegant is used for real-world applications such as the design of the Positron Accumulator Ring (PAR), dog-leg lattices, top-up safety tracking, and bunch compressor design. It is used for simulations involving multiple configurations, parameter sweeps, and tolerance analysis. It is highly automated, with scripts for setup, submission, and postprocessing. The SDDS Toolkit is used for data processing and analysis, enabling flexible and efficient simulation workflows. The code is well-suited for research and development in accelerator physics, with a focus on flexibility, automation, and data-driven analysis.elegant is a flexible, SDDS-compliant accelerator simulation code used at the Advanced Photon Source (APS) for circular and one-pass machines. It supports 6-D tracking using matrices up to third order, canonical integration, and numerical integration. It includes standard beamline elements, coherent synchrotron radiation, wakefields, rf elements, kickers, apertures, scattering, and more. It performs tracking with and without errors, optimization of tracked properties, computation and optimization of Twiss parameters, radiation integrals, matrices, and floor coordinates. It supports orbit/trajectory, tune, and chromaticity correction. It is fully compliant with the Self Describing Data Sets (SDDS) file protocol, allowing users to prepare scripts for flexible and automated simulations. It is well-suited for multistage and concurrent simulations on multiple workstations. elegant is driven by a command file containing namelist-like commands and optional comments. It requires a lattice file, similar to MAD, with variations in capabilities and elements. Output includes text output and SDDS files. Input is provided via SDDS files. elegant has no embedded postprocessing or graphics support, relying on the SDDS Toolkit for these tasks. The Toolkit provides a powerful system for data analysis and display, and is used with elegant for postprocessing and displaying results. elegant supports various accelerator elements, including beam-transport elements, rf cavities, time-dependent elements, collective effects, coherent synchrotron radiation, intra-beam scattering, and beam diagnostics. It provides output files for various analyses, including Twiss parameters, transport matrices, and orbit/trajectory data. It supports optimization of beam properties, tracking with various methods, and simulation of complex scenarios. elegant is used for real-world applications such as the design of the Positron Accumulator Ring (PAR), dog-leg lattices, top-up safety tracking, and bunch compressor design. It is used for simulations involving multiple configurations, parameter sweeps, and tolerance analysis. It is highly automated, with scripts for setup, submission, and postprocessing. The SDDS Toolkit is used for data processing and analysis, enabling flexible and efficient simulation workflows. The code is well-suited for research and development in accelerator physics, with a focus on flexibility, automation, and data-driven analysis.