Formulas
- Pervez Hoodbhoy
- Peter Keevash
- Pettis integral
- Bilinear form
- Regiomontanus' angle maximization problem
- Regula falsi
- Regular paperfolding sequence
- Relation (mathematics)
- Remainder
- Remez inequality
- Rencontres numbers
- Renormalization
- Representation of a Lie group
- Representation theory of SL2(R)
- Reproducing kernel Hilbert space