Formulas
- Pendulum (mechanics)
- Pentagonal bipyramid
- Pentagonal cupola
- Pentagonal gyrobicupola
- Pentagonal gyrocupolarotunda
- Pentagonal orthobicupola
- Pentagonal orthobirotunda
- Pentagonal orthocupolarotunda
- Pentagonal pyramid
- Pentagonal rotunda
- Pentagonal tiling
- Pentatope number
- Perceptron
- Perfect hash function
- Perfect matching