The most popular formulas - This is a list of formulas which have most downloads.

Set identities - Union, Intersection, Complement,Difference, Cartesian product

Complex numbers - Multiplication, Division, Polar form, De Moivre's theorem, Roots

Factoring and product formulas

Solutions of algebraic equations - Quadratic, Cubic and Quartic Equation

Trigonometry Formulas - Right-Triangle Definitions, Reduction Formulas, Identities, Sum and Difference Formulas, Double Angle and Half Angle Formulas, law of sines and cosines, area of triangle

Hyperbolic functions - Definitions, Derivatives, Hyperbolic identities, Inverse Hyperbolic functions

Lines in two dimensions - Line forms, Distance, Concurrent lines, Line segment

Triangles in two dimensions - Area, Centroid, Incenter, Circumcenter, Orthocenter

Circle - Equation of a circle, Area, Circumference, Chord theorem, Tangent-secant theorem, Secant - secant theorem

Conic Section - Parabola, Ellipse, Hyperbola

Lines in three dimensions - Line forms, Distance, Intersection

Planes in three dimensions - Plane forms, Angle between two planes, Equation of a plane, Distance, Intersection

Common Derivatives + Basic Properties and Formulas

Higher-order Derivatives - definitions, properties and important formulas

Integrals of Rational Functions

Integrals of Exponential Functions

Arithmetic and Geometric Series

Power Series and Powers of Natural Numbers

Taylor and Maclaurin Series - definitions, binomial series, series for exponential, logarithmic, trigonometric and hyperbolic functions

Most popular formulas - list of math formulas that have been downloaded most number of times.