What is "delphi"

oracle town on slopes of Mount Parnassus, from Greek delphis "dolphin" (see dolphin). Supposedly Apollo assumed this form to found the shrine.

Delphi ( or ; , ) is famous as the ancient sanctuary that grew rich as the seat of the oracle that was consulted on important decisions throughout the ancient classical world. Moreover, it was considered as the navel (or centre) of the world by the Greeks as represented by the Omphalos.

It occupies an impressive site on the south-western slope of Mount Parnassus overlooking the coastal plain to the south and the valley of Phocis. It is now an extensive archaeological site and the modern town is nearby.

It is recognised by UNESCO as a World Heritage Site in having had a phenomenal influence in the Ancient world, as evidenced by the rich monuments built there by most of the important ancient Greek city-states, demonstrating their fundamental Hellenic unity.

Embarcadero Delphi is a programming language and software development kit (SDK) for desktop, mobile, web, and console applications. Delphi's compilers use their own Object Pascal dialect of Pascal and generate native code for several platforms: Windows ( x86 and x64), OS X (32-bit only), iOS (32 and 64-bit) and Android.

Delphi, part of RAD Studio, includes a code editor with Code Insight ( code completion), Error Insight (real-time error-checking), and other features; refactoring; a visual forms designer for both VCL (native Windows) and FMX (cross-platform, partially native per platform); an integrated debugger for all platforms including mobile; source control ( SVN, git, and Mercurial); and support for third-party plugins. It has strong database support. Delphi is remarkably fast to compile: unlike any other common languages, including C# and Swift, it is not unusual for a Delphi project of a million lines to compile in a few seconds – one benchmark gave 170,000 lines per second. It is under active development, with (in 2016) releases every six months, with new platforms being added approximately every second release.

Delphi was originally developed by Borland as a rapid application development tool for Windows as the successor of Turbo Pascal. Delphi added full object-orientation to the existing language, and since then the language has grown and supports many other modern language features, including generics and anonymous methods, as well as unusual features such as inbuilt string types and native COM support. Delphi and its C++ counterpart, C++Builder, share many core components, notably the IDE, the Visual Component Library (VCL), and much of the RTL, and are compatible with each other: C++Builder 6 and onwards can consume Delphi-language files and C++ in the one project, and packages compiled with C++Builder written in C++ can be used from within Delphi. In 2007, the products were released jointly as RAD Studio. RAD Studio is a shared host for Delphi and C++Builder, and can be purchased with either or both.

In 2006, Borland’s developer tools section were transferred from Borland to a wholly owned subsidiary known as CodeGear, which was sold to Embarcadero Technologies in 2008. In 2015, Embarcadero was purchased by Idera, but the Embarcadero mark was retained for the developer tools division.

Delphi is both an archaeological site and a modern town in Greece

• Delphi, mountain in Skopelos, Greece
• Delphic oracle or Pythia, located in Delphi

Delphi may also refer to:

Delphi Forums is an U.S. online service provider and since the mid 1990s has been a community internet forum site. It started as a nationwide dialup service in 1983. Delphi Forums remains active as of 2016, claiming 4 million registered members and "more than 8,000 active Forums" in 2013.

Delphi is the name of two characters in Marvel Comics:

• Delphi (Morlocks), a Marvel Comics character appearing in the Uncanny X-Men series
• Delphi (Pantheon), a Marvel Comics character appearing in the Incredible Hulk series

DelPhi is a scientific application which calculates electrostatic potentials in and around macromolecules and the corresponding electrostatic energies. It incorporates the effects of ionic strength mediated screening by evaluating the Poisson-Boltzmann equation at a finite number of points within a three-dimensional grid box.

One of the main problems in modeling the electrostatic potential of biological macromolecules is that they exist in water at a given ionic strength and that they have an irregular shape. Analytical solutions of the corresponding Poisson-Boltzmann Equation (PBE) are not available for such cases and the distribution of the potential can be found only numerically. DelPhi, developed in Professor Barry Honig's lab in 1986, was the first PBE solver used by many researchers. The widespread popularity of DelPhi is due to its speed, accuracy (calculation of the electrostatic free energy is only slightly dependent on the resolution of the grid) and the ability to handle extremely high grid dimensions.

Additional features such as assigning different dielectric constants to different regions of space, smooth Gaussian-based dielectric distribution function, modeling the electrostatic potential distribution across biological membranes, modeling geometric objects and charge distributions, and treating systems containing mixed salt solutions also attracted many researchers. In addition to the typical potential map, DelPhi can generate and output the calculated distribution of either the dielectric constant or ion concentration, providing the biomedical community with extra tools for their research.

Delphi distribution comes as a sequential as well as parallelized codes, runs on Linux, Mac OS X and Microsoft Windows systems and the source code is available in Fortran 95 and C++ programming languages. DELPHI is also implemented into an accessible web-server. DELPHI has also been utilized to build a server that predicts pKa's of biological macromolecules such as proteins, RNAs and DNAs which can be accessed via web.

Pdb files are typically used as input for DelPhi calculations. Other required inputs are an atomic radii file and a charge file . Binary Potential files as output from DelPhi can be viewed in most molecular viewers such as UCSF Chimera, Jmol, and VMD, and can either be mapped onto surfaces or visualized at a fixed cutoff.

DelPhi is commonly used in protein science to visualize variations in electrostatics along a protein or other macromolecular surface and to calculate the electrostatic components of various energies.