Wikipedia:Missing science topics/ExistingMathR


 * R
 * R-algebra
 * R-group
 * R-module
 * R-n
 * Raabe's test
 * Rabbit Sequence or Rabbit sequence
 * Rabdology
 * Rabin-Miller strong pseudoprime test or Rabin-miller strong pseudoprime test
 * Rabinovich-Fabrikant equation
 * Racah W-coefficient
 * Rademacher's theorem
 * Radial basis function
 * Radial line
 * Radian
 * Radiation conditions
 * Radical
 * Radical (mathematics)
 * Radical axis
 * Radical center
 * Radical of an ideal
 * Radical of an integer
 * Radical of rings and algebras
 * Radical root
 * Radicand
 * Radius
 * Radius of convergence
 * Radius of curvature
 * Radius of Gyration or Radius of gyration
 * Radius vector
 * Radix
 * Radix sort
 * Rado's theorem or Rado's Theorem
 * Radon integral
 * Radon measure
 * Radon Transform or Radon transform
 * Radon's lemma
 * Radon's theorem
 * Radon-Nikodym Derivative or Radon-Nikodym derivative
 * Radon-Nikodym theorem or Radon-Nikodym Theorem or Radon-Nikodým theorem
 * Ramanujan
 * Ramanujan Constant or Ramanujan constant
 * Ramanujan continued fractions
 * Ramanujan hypothesis
 * Ramanujan prime
 * Ramanujan sum
 * Ramanujan theta functions
 * Ramanujan's hypothesis
 * Ramanujan's square equation
 * Ramanujan's sum
 * Ramanujan's tau function
 * Ramanujan-Nagell equation
 * Ramanujan-Petersson conjecture
 * Ramanujan-Soldner constant
 * Ramification group
 * Ramification index
 * Ramification point
 * Ramp function
 * Ramsey Number or Ramsey number
 * Ramsey numbers
 * Ramsey theorem
 * Ramsey Theory or Ramsey theory
 * Ramsey's theorem or Ramsey's Theorem
 * Random
 * Random allocation
 * Random distribution
 * Random dot stereogram
 * Random element
 * Random event
 * Random field
 * Random function
 * Random graph
 * Random mapping
 * Random matrix
 * Random number
 * Random numbers
 * Random permutation
 * Random sequence
 * Random variable or Random Variable
 * Random variate
 * Random vector
 * Random walk
 * Random Walk--1-Dimensional
 * Random Walk--2-Dimensional
 * Random Walk--3-Dimensional
 * Randomization
 * Randomization test
 * Range
 * Range (mathematics)
 * Range problem
 * Range voting
 * Rank
 * rank
 * Rank of a Lie group
 * Rank of an elliptic curve
 * Rank test
 * Rank-nullity theorem
 * Rankin’s method
 * Rao-Cramér inequality
 * Rate of convergence
 * Rate of return
 * Ratio
 * Ratio Distribution or Ratio distribution
 * Ratio test
 * Rational
 * Rational canonical form
 * Rational curve
 * Rational diagonal
 * Rational domain
 * Rational function
 * Rational integer
 * Rational mapping
 * Rational number or Rational Number
 * Rational point
 * Rational representation
 * Rational root theorem
 * Rational singularity or Rational Singularity
 * Rational surface
 * Rational tangles
 * Rational triangle
 * Rational variety
 * Rationalise
 * Rationals
 * Raw moment
 * Ray
 * Rayleigh distribution
 * Rayleigh quotient
 * Rayleigh-Taylor instability
 * Re or RE
 * Reaction-diffusion equation
 * Real Analysis or Real analysis
 * Real analytic function
 * Real and complex embeddings
 * Real axis
 * Real closed field
 * Real exponential function
 * Real form
 * Real function or Real Function
 * Real line
 * Real manifold
 * Real matrix
 * Real measure
 * Real number
 * Real Numbers or Real numbers
 * Real part
 * Real polynomial
 * Real projective plane
 * Real projective space
 * Real quadratic field
 * Real space
 * Real tree
 * Real variable
 * Real vector
 * Real vector bundle
 * Real vector space
 * Real-valued function
 * Realizability
 * Realization
 * Realizer
 * Reals
 * Rearrangement inequality
 * Reciprocal
 * Reciprocal difference
 * Reciprocal Fibonacci Constant or Reciprocal Fibonacci constant
 * Reciprocal matrix
 * Reciprocal polynomial
 * Reciprocation
 * Reciprocity law
 * Reciprocity laws
 * Reciprocity Theorem or Reciprocity theorem
 * Recognize
 * Rectangle
 * Rectangle function
 * Rectangle rule
 * Rectangular Coordinates or Rectangular coordinates
 * Rectangular distribution
 * Rectangular parallelepiped
 * Rectifiable
 * Rectifiable curve
 * Rectifiable Set or Rectifiable set
 * Rectification
 * Recurrence equation
 * Recurrence plot
 * Recurrence relation
 * Recurrent point
 * Recurrent relation
 * Recurring decimal
 * Recursion
 * Recursion Theorem or Recursion theorem
 * Recursive definition
 * Recursive function
 * Recursive relation
 * Recursive Sequence or Recursive sequence
 * Recursive set
 * Recursively enumerable set or Recursively Enumerable Set
 * Red-black tree or Red-Black Tree
 * Redmond-Sun conjecture
 * Reduce
 * Reduced echelon form
 * Reduced residue system
 * Reduced ring
 * Reduced row echelon form
 * Reduced scheme
 * Reducible
 * Reducible representation
 * Reductio ad absurdum
 * Reduction of Order or Reduction of order
 * Reduction of structure group
 * Reductive group
 * Reductive Lie algebra
 * Redundancy
 * Ree group
 * Reeb foliation
 * Reed-Sloane algorithm
 * Reef Knot or Reef knot
 * Refactorable number
 * Refal
 * Refinement
 * Reflection
 * Reflection Formula or Reflection formula
 * Reflection group
 * Reflection principle
 * Reflection Relation or Reflection relation
 * Reflective subcategory
 * Reflector
 * Reflex angle
 * Reflexive
 * Reflexive Banach space
 * Reflexive space
 * Reflexivity
 * Refraction
 * Region
 * Register machine
 * Regression
 * Regression analysis
 * Regression model
 * Regression to the Mean or Regression to the mean
 * Regula falsi
 * Regular element
 * Regular expression or Regular Expression
 * Regular function
 * Regular grammar
 * Regular graph
 * Regular group action
 * Regular homotopy
 * Regular isotopy
 * Regular language
 * Regular local ring
 * Regular matrix
 * Regular measure
 * Regular Number or Regular number
 * Regular octagon
 * Regular open set
 * Regular pentagon
 * Regular polygon
 * Regular polygons
 * Regular polyhedra
 * Regular polyhedron
 * Regular polytope
 * Regular prime
 * Regular prime number
 * Regular representation
 * Regular ring
 * Regular semigroup
 * Regular sequence
 * Regular singular point
 * Regular singularity
 * Regular space
 * Regular tessellation
 * Regularity axiom
 * Regularity lemma
 * Regularization
 * Regularized beta function
 * Regularized gamma function or Regularized Gamma function
 * Regularly open
 * Regulator
 * Regulator of an algebraic number field
 * Regulus
 * Reidemeister moves
 * Related rates
 * Relation
 * Relation (mathematics)
 * Relational structure
 * Relative complement
 * Relative Degree
 * Relative entropy
 * Relative error
 * Relative Frequency or Relative frequency
 * Relative homology
 * Relative homology groups
 * Relative interior
 * Relative topology
 * Relatively compact
 * Relatively compact subspace
 * Relatively prime
 * Relatively-compact set
 * Relativistic dynamics
 * Relativistic invariance
 * Relativity principle
 * Relativity theory
 * Relaxation oscillation
 * Reliability theory
 * Rellich selection theorem
 * Remainder
 * Remainder of an integer
 * Remainder term
 * Remainder Theorem or Remainder theorem
 * Remez algorithm
 * Remez exchange algorithm
 * Removable set
 * Removable singular point
 * Removable singularity
 * Rencontres number
 * Renewal theory
 * Renormalization
 * Repdigit
 * Repeated integral
 * Repeating Decimal or Repeating decimal
 * Repfigit number
 * Replica
 * Replicate
 * Representable functor
 * Representation
 * Representation of a finite group
 * Representation of a group
 * Representation of a Lie algebra
 * Representation of the symmetric groups
 * Representation theory
 * Representations of Lie algebras
 * Representations of Lie groups
 * Reproducing kernel
 * Reproducing-kernel Hilbert space
 * Reptile
 * Repunit
 * Resampling statistics
 * Residual
 * Residual set
 * Residually-finite group
 * Residue
 * Residue (complex analysis)
 * Residue class
 * Residue field
 * Residue of an analytic function
 * Residue Theorem or Residue theorem
 * Resistance distance
 * Resolution
 * Resolution of singularities
 * Resolution of the identity
 * Resolution principle
 * Resolve
 * Resolvent
 * Resolvent set
 * Resonance
 * Restricted direct product
 * Restricted representation
 * Resultant
 * Retract
 * Retraction
 * Reuleaux polygon
 * Reuleaux Tetrahedron or Reuleaux tetrahedron
 * Reuleaux Triangle or Reuleaux triangle
 * Reve's puzzle
 * Reversal
 * Reverse Polish notation or Reverse polish notation or Reverse Polish Notation
 * Reversible prime
 * Reversion of series
 * Reversion to the Mean or Reversion to the mean
 * Rewriting system
 * Reynolds number
 * Reynolds transport theorem
 * Rhetoric
 * Rhind Papyrus or Rhind papyrus
 * Rhomb
 * Rhombic dodecahedron
 * Rhombic enneacontahedron
 * Rhombic icosahedron
 * Rhombic triacontahedron
 * Rhombicosahedron
 * Rhombicosidodecahedron
 * Rhombicuboctahedron
 * Rhombidodecadodecahedron
 * Rhombitruncated cuboctahedron
 * Rhombitruncated Icosidodecahedron or Rhombitruncated icosidodecahedron
 * Rhombohedron
 * Rhomboid
 * Rhombus
 * Rhumb Line or Rhumb line
 * Ribbon knot
 * Ribet's theorem
 * Riccati differential equation
 * Riccati equation
 * Riccati-Bessel function
 * Riccati-Bessel functions
 * Ricci curvature
 * Ricci curvature tensor
 * Ricci flow
 * Ricci tensor
 * Rice distribution
 * Rice's Theorem or Rice's theorem
 * Richard Feynman or Richard feynman
 * Richard paradox or Richard Paradox
 * Richard Stanley
 * Richard's Paradox or Richard's paradox
 * Richardson extrapolation
 * Rickart ring
 * Ridge
 * Riemann conditions
 * Riemann curvature tensor
 * Riemann differential equation
 * Riemann function
 * Riemann geometry
 * Riemann hypotheses
 * Riemann Hypothesis or Riemann hypothesis
 * Riemann integral
 * Riemann lemma
 * Riemann mapping theorem or Riemann Mapping Theorem
 * Riemann multiple integral
 * Riemann P-differential equation
 * Riemann P-series
 * Riemann series theorem
 * Riemann space
 * Riemann sphere
 * Riemann sum or Riemann Sum
 * Riemann surface or Riemann Surface
 * Riemann tensor
 * Riemann theta function
 * Riemann theta-function
 * Riemann Xi function or Riemann xi function
 * Riemann Xi-Function or Riemann xi-function
 * Riemann zeta function or Riemann Zeta Function
 * Riemann zeta function zeros
 * Riemann zeta-function
 * Riemann-Christoffel curvature tensor
 * Riemann-Christoffel tensor
 * Riemann-Hilbert problem
 * Riemann-Hurwitz formula
 * Riemann-Kempf singularity theorem
 * Riemann-Lebesgue lemma or Riemann-Lebesgue Lemma
 * Riemann-Roch theorem or Riemann-Roch Theorem
 * Riemann-Roch theorem for algebraic surfaces
 * Riemann-Stieltjes integral or Riemann-Stieltjes Integral
 * Riemann-von Mangoldt formula
 * Riemannian connection
 * Riemannian curvature
 * Riemannian geometry
 * Riemannian manifold
 * Riemannian metric
 * Riemannian submersion
 * Riesel number
 * Riesel problem
 * Riesz basis
 * Riesz potential
 * Riesz representation theorem
 * Riesz sequence
 * Riesz space
 * Riesz theorem
 * Riesz's theorem
 * Riesz-Fischer theorem or Riesz-Fischer Theorem
 * Riffle
 * Rig
 * Rigged Hilbert space or Rigged hilbert space
 * Rigged manifold
 * Right Angle or Right angle
 * Right ascension or Right Ascension
 * Right circular cone
 * Right circular cylinder
 * Right coset
 * Right cylinder
 * Right eigenvector
 * Right hand rule
 * Right ideal
 * Right transversal
 * Right triangle
 * Right-hand rule
 * Right-handed coordinate system
 * Rigid
 * Rigid analytic space
 * Rigid motion
 * Rigidity
 * Rigidity theorem
 * Rigorous
 * Ring (mathematics)
 * Ring extension
 * Ring homomorphism
 * Ring of endomorphisms
 * Ring of fractions
 * Ring of integers
 * Ring of polynomials
 * Ring of sets
 * Ring spectrum
 * Ring Theory or Ring theory
 * Ring torus
 * Ring unit
 * Ring with identity
 * Ringed space
 * Riquier
 * Risch algorithm
 * Rise
 * Rising factorial
 * Risk theory
 * Ritz method
 * RK4
 * RMS or Rms
 * Robbins algebra
 * Robbins conjecture
 * Robbins constant
 * Robert Calderbank
 * Robertson-Seymour Theorem or Robertson-Seymour theorem
 * Robertson–Seymour theorem
 * Robin boundary conditions
 * Robin's theorem
 * Robinson projection
 * Robust statistics
 * Rodrigues formula
 * Rodrigues' rotation formula
 * Rogers-Ramanujan identities
 * Rogers-Ramanujan identity
 * Rolle theorem
 * Rolle's theorem or Rolle's Theorem
 * Roller
 * Roman numerals or Roman Numerals
 * Roman Surface or Roman surface
 * Romberg integration
 * Romberg method
 * Ronald Graham
 * Root or ROOT
 * Root (mathematics)
 * Root group
 * Root lattice
 * Root node or Root Node
 * Root of unity
 * Root system
 * Root test
 * Root vector
 * Root-finding algorithm
 * Root-mean-square
 * Rooted graph
 * Rooted tree
 * Roots
 * Rose
 * Rosenbrock function
 * Rosser's theorem
 * Rotation
 * Rotation formula
 * Rotation group
 * Rotation matrix
 * Rotation number
 * Rotation of a vector field
 * Rotation operator
 * Roth's theorem
 * Rotoinversion
 * Rotor
 * Rotunda
 * Rouché theorem
 * Rouché's theorem
 * Rough number
 * Roulette
 * Round
 * Round function
 * Round number
 * Round Robin tournament or Round robin tournament
 * Rounded rectangle
 * Rounding
 * Rounding error
 * Roundness
 * Roundoff error
 * Route
 * Routh theorem
 * Routh's theorem
 * Routh-Hurwitz theorem
 * Row echelon form
 * Row space
 * Row vector
 * Row-reduced echelon form
 * RPN or Rpn
 * RSA or Rsa
 * RSA encryption or Rsa encryption
 * RSA number
 * Rubik's Clock or Rubik's clock
 * Rubik's cube or Rubik's Cube
 * Rudvalis group
 * Rule
 * Rule 110
 * Rule 30
 * Rule of 72
 * Rule of inference
 * Rule of nines
 * Rule of signs
 * Ruled surface or Ruled Surface
 * Ruler
 * Ruler and compass
 * Ruling
 * Rumors
 * Rumors (science)
 * Run
 * Run-length encoding
 * Runge theorem
 * Runge's theorem or Runge's Theorem
 * Runge-Kutta method or Runge-kutta method
 * Running average
 * Running knot
 * Running time
 * Russell paradox
 * Russell's antinomy
 * Russell's paradox or Russell's Paradox
 * Russian multiplication
 * Russian Roulette or Russian roulette
 * Ruth Bari
 * Ruth Lawrence or Ruth lawrence
 * Ruth Moufang or Ruth moufang
 * Ruth-Aaron pair
 * Rényi entropy
 * Rényi information
 * Rózsa Péter or Rózsa péter
 * Rössler Attractor or Rössler attractor