reliability coefficientreliablereliefrelleasedrelocatereluctanceremainremain at restremainderremainder formularemainder functionremainder least absoluteremainder of a seriesremainder of an infinite seriesremainder principalremainder termremainder theoremremaining durationremains unchangedremarkremarks forremotenessremovableremovable discontinuityremovable plate moldremovable singular pointremovable singularityremovalremoval of a term of an equationremoverenderringrenewalrenewal functionrenewal theoremrenewal theoryrenormalization methodrentrenumberrenumberingreorder intervalreorder interval systemreorder pointreorganizationreorientationrepairrepair centerrepair cyclerepair shopreparametrizationrepartition