randomhalves reliability
RANSAC RANdom SAmpling Consensus algorithm
RAP Random Access Program
RAPCOE Random Access Programming and CheckOut Equipment
RAPD (Random ampli-fied polymorphic DNA)
RAPD random amplified polymorphic DNA
rapid random access memory
rapidly exploring random tree
Rapidly-exploring Random Tree
Rapidly-Exploring Random Tree (RRT)
Rapidly-Exploring Random Tree RRT
RAPPI Random Access Plane Position Indicator
RAS Random Access Storage
RASTAC Random – Access STorage And Control