Categories

The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.

• Order 18 (1 member)
• Order 19 (1 member)
• Order 2 (2 members)
• Order 20 (1 member)
• Order 25 (1 member)
• Order 3 (3 members)
• Order 4 (3 members)
• Order 5 (3 members)
• Order 6 (3 members)
• Order 7 (2 members)
• Order 8 (1 member)
• Order 9 (1 member)
• Order theory (3 members)
• Oxygen diagrams (2 members)
• P-adic numbers (2 members)
• P-adic order (1 member)
• PH (chemistry) (2 members)
• PN-junction band diagrams (3 members)
• PN-junction diagrams (2 members)
• PSTricks (1 member)
• PageRank (1 member)
• Pages of books about mathematics (1 member)
• Pages using deprecated source tags (11 members)
• Pages with broken file links (128 members)
• Paintings by Ivan Argunov (1 member)
• Paintings in the Kyiv National Art Gallery (1 member)
• Panniers (clothing) in portrait paintings (1 member)
• Parabolas (12 members)
• Paradoxical decomposition (1 member)
• Parallel plate capacitors (2 members)
• Parallelograms (2 members)
• Parametric curves (1 member)
• Parochial schools in Russian Empire (1 member)
• Partial differential equations (1 member)
• Pascal's triangle (0 members)
• Peakon (1 member)
• Peano curve (1 member)
• Peasants by Bogdanov-Belsky (1 member)
• Penrose tilings (1 member)
• Pentagamma function (1 member)
• Pentagonal numbers (1 member)
• Period-doubling bifurcation (1 member)
• Periodic functions (1 member)
• Permutations of 8 elements (1 member)
• Petroleum production in Norway (2 members)
• Phase space diagrams (1 member)
• Phenolphthalein (1 member)
• Photographs by Zachi Evenor (1 member)
• Photomontages (1 member)
• Photos by User:Geek3 (2 members)