Mathematics

Polychoron

Polygon

Polyhedron

Polynomial

Polynomial remainder theorem

Polynomial root

Polytope

Population (statistics)

Positive number

Post hoc fallacy

Post hoc fallacy (post hoc ergo propter hoc)

Postfix notation

Postfix notation (Reverse Polish Notation)

Postulate

Power of two

Power series

Power series: definition, convergence, and applications

Power set

Precision (numbers)

Numerical precision: decimal places, significant figures, and representation

Predicate logic

Prediction interval

Prediction interval: definition, calculation, interpretation and uses

Prefix

Prefix (linguistics): meaning, types, and examples

Prefix notation

Prefix notation (Polish notation)

Primality test

Primality test — methods for determining whether a number is prime

Prime counting function

Prime counting function (π(x))

Prime number

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. This article explains definitions, properties, history, tests, distribution

Prime number theorem

Primitive root modulo n

Primitive root modulo n — generators of the multiplicative residue group

Principia Mathematica

Principia Mathematica (Whitehead and Russell)

Prism (geometry)

Probability

Probability density function

A probability density function (pdf) describes how probability is distributed over continuous outcomes. It links to the cumulative distribution, expectations, common examples, and

Probability distribution

Probability space

Probability space (measure-theoretic model of random experiments)

Probability theory

Product (mathematics)

In mathematics, a product is the result of multiplying numbers or other mathematical objects; this article explains definitions, properties, historical notes, examples and common d

Professor's Cube

Professor's Cube (5×5×5 Rubik-style puzzle)

Progression

Projection (mathematics)

Proof

Proportionality

Proportionality: direct and inverse relationships in mathematics and applications

Proportions

Propositional logic

Protractor

Protractor — Instrument for Measuring Angles

A protractor is a simple device for measuring and laying out angles. This article covers types, construction, use, accuracy, history, and common applications in education, drafting

Psi (letter)

Psi (Greek letter Ψ, ψ)

Pure mathematics

Puzzle

Puzzle (problem-solving activity and recreational challenge)

Pyramid (geometry)

Pyramid (geometry): forms, properties, and formulas

Pythagorean theorem

Pythagorean triple

Quadratic equation

Quadratic equation: definition, solutions, graph, and applications

A quadratic equation is a second-degree polynomial ax²+bx+c=0. This article explains its form, graph (parabola), solution techniques, discriminant, historical notes, and common app