Navigating the Physics Derivation Graph website

• site map (this page)
• query graph using Cypher
• export as Cypher or export as JSON or or export as CSV or or export as GraphML.
• show 44 derivations, (which are comprised of steps); you have to sign in to create new derivations
• show 94 inference rules (which are used in steps to relation expressions)
• show 632 expressions (which have a relation, e.g., equality or inequality, as well as LHS and RHS each comprised of symbols)
• show 356 feeds (which have one or more non-operation symbols; no equality or inequality)
• symbols
• show 40 operations (which require arguments; separate terms within one side of an expression)
• show 10 relations (which separate LHS and RHS of expression)
• show 227 scalars (which have dimensionality)
• show 14 vectors (of size 1xn or nx1). Includes bra, ket.
• show 0 matrices (of size nxm)
• documentation

You have to sign in to upload Cypher files or delete all content.

timing of Neo4j queries:

• 0.011 seconds for pdg_app/main: count_nodes_of_type, derivation4633384
• 0.004 seconds for pdg_app/main: count_nodes_of_type, inference_rule4633384
• 0.002 seconds for pdg_app/main: count_nodes_of_type, expression4633384
• 0.002 seconds for pdg_app/main: count_nodes_of_type, scalar4633384
• 0.002 seconds for pdg_app/main: count_nodes_of_type, vector4633384
• 0.002 seconds for pdg_app/main: count_nodes_of_type, matrix4633384
• 0.003 seconds for pdg_app/main: count_nodes_of_type, operation4633384
• 0.003 seconds for pdg_app/main: count_nodes_of_type, relation4633384
• 0.003 seconds for pdg_app/main: count_nodes_of_type, feed4633384