R jpdecimal - Cross-system expression
R jpdecimal / Rainbow
MJ Physics Engineering | Bangel Language | MJos Operating System
Owned and operated by Michael Bangel | Clearwater, Florida
CROSS-SYSTEM RELATIONSHIP
Related identities: JP C++ Decimal Library; Bangel Interoperability. Preserve each named contract and source status.
PROPOSED EXPRESSION PATH
Purpose -> declared MJ scope -> Bangel expression -> Elsa compilation -> independently admitted JP -> Joanna evidence where implemented -> applicable independent review -> bounded result.
PROJECT ADAPTER
- DecimalValue — exact representation and scale
- NumericOperation — supported operation and rounding rule
- MemoryContract — owner and lifetime
- NumericEvidence — expected result and test profile
ADAPTER PROCEDURE
IF
A supported decimal operation is requested through the native or R interface.
HOW
Preserve representation, rounding and ownership rules and compare behavior with the matching numeric contract.
THEN
Return the precise supported result or named failure without expanding the arithmetic guarantees.
INTEGRATION STATUS
This path is documentary unless the cited source implements it. Preserve profile, context, clock, units and evidence class at each handoff. A catalog entry or logo does not install a runtime or complete a missing adapter.
DISCOVERY NAMES
R jpdecimal
These names aid search; current compiler naming remains Elsa.
SOURCE STATUS AND LIMITS
Recovered historical design and project records informed this documentary profile. Original conversations remain private; current implementation and reported historical tests were not rerun.
Recovered status: historical_report_not_fresh_verification.
Historical released integration; precise numeric semantics depend on the native-library contract. Historical evidence has not been rerun in this discovery pass.
SOURCE REFERENCES
PUBLIC SOURCE NOTE
Recovered historical design and project records informed this documentary profile. Original conversations remain private; current implementation and reported historical tests were not rerun. This edition publishes the reconciled project description, without redistributing private messages or unverified release URLs.