virtual

An expression parser and a virtual machine for Object Pascal. A formula compiles to a flat byte array and runs by a linear pass over it, with no allocation on the path of an ordinary formula. On x86-64 an optional accelerator turns that bytecode into machine code and hands back anything it declines, so an answer is never fast but wrong. 199 registered names, user functions and variables bound by address, symbolic differentiation. Depends on the RTL alone: no VCL, no FMX.

X-DBData Components package was designed to can directly use any indexed data structures with db-aware data components, especially with our TXDBGrid component.

Virtual Treeview is a Delphi treeview control built from ground up. Many years of development made it one of the most flexible and advanced tree controls available today. Virtual Treeview starts off with the claim to improve many aspects of existing solutions and introduces some new technologies and principles which were not available before.

Components for virtual instrumentation.