Elongated Pentagonal Gyrobirotunda

Johnson Solid .

• Russian Multiplication
• Russian Roulette
• Ryser Formula
• Rényi's Parking Constants
• Rössler Model
• Saalschützian
• Saalschütz's Theorem
• s-Additive Sequence
• Saddle
• Saddle-Node Bifurcation
• Saddle Point (Fixed Point)
• Saddle Point (Function)
• Saddle Point (Game)
• Safarevich Conjecture
• Safe
• Sagitta
• Saint Andrew's Cross
• Saint Anthony's Cross
• Saint Petersburg Paradox
• Sal
• Salamin Formula
• Salem Constants
• Salesman Problem
• Salient Point
• Salinon