Exact Differential
A differential of the form
 | (1) |
is path-independent. This will be true if | (2) |
and 
must be of the form | (3) |
 | (4) |
 | (5) |
 | (6) |
- Regular Triangle Center
- Regulus
- Reidemeister Moves
- Reidemeister's Theorem
- Reinhardt Domain
- Relation
- Relative Error
- Relative Extremum
- Relatively Prime
- Relative Maximum
- Relative Minimum
- Relaxation Methods
- Remainder
- Remainder Theorem
- Rembs' Surfaces
- Removable Crossing
- Removable Singularity
- Rencontres Number
- Rendezvous Values
- Repartition
- Repdigit
- Repeating Decimal
- Repfigit Number
- Replicate
- Representation