| Name | Description | Type | Package | Framework |
| BasicTemplate | Class | org.encog.ml.prg.extension | HeatonReasearch | |
| EncogOpcodeRegistry | enum EncogOpcodeRegistryHolds all known EPL opcodes. | Class | org.encog.ml.prg.extension | HeatonReasearch |
| FunctionFactory | A function factory maps the opcodes contained in the EncogOpcodeRegistry into an EncogProgram. | Class | org.encog.ml.prg.extension | HeatonReasearch |
| NodeType | The node type. | Class | org.encog.ml.prg.extension | HeatonReasearch |
| ParamTemplate | Provides a template for parameters to the opcodes. | Class | org.encog.ml.prg.extension | HeatonReasearch |
| ProgramExtensionTemplate | Defines an opcode. | Interface | org.encog.ml.prg.extension | HeatonReasearch |
| StandardExtensions | This class defines the standard opcodes for Encog programs. | Class | org.encog.ml.prg.extension | HeatonReasearch |