Product Rule

Algebra

The product rule for exponents states that when multiplying two exponential expressions with the same base, you keep the base and add the exponents.

Quotient Rule

Algebra

The quotient rule for exponents states that when dividing two exponential expressions with the same base, you keep the base and subtract the exponents.

Power of a Power Rule

Algebra

The power of a power rule for exponents states that when raising an exponential expression to another power, you keep the base and multiply the exponents.

Power of a Product Rule

Algebra

The power of a product rule for exponents states that when raising a product to a power, you raise each factor to that power.

Zero Exponent Rule

Algebra

Any non-zero number raised to the power of zero equals one.

Negative Exponent Rule

Algebra

A negative exponent indicates the reciprocal of the base raised to the positive exponent.

Difference of Squares

Algebra

The difference of squares formula.

Perfect Square Trinomial (Sum)

Algebra

The formula for the square of a binomial sum.

Perfect Square Trinomial (Difference)

Algebra

The formula for the square of a binomial difference.

Sum of Cubes

Algebra

The formula for the sum of two cubes.

Difference of Cubes

Algebra

The formula for the difference of two cubes.

Slope Formula

Algebra

Slope of a line through two points.

Slope-Intercept Form

Algebra

Equation of a line in slope-intercept form.

Point-Slope Form

Algebra

Equation of a line in point-slope form.

Standard Form

Algebra

Equation of a line in standard form.

Quadratic Formula

Algebra

Solve quadratic equations of the form ax² + bx + c = 0.

Vertex Form of a Quadratic

Algebra

Equation of a quadratic function in vertex form.

Discriminant of a Quadratic

Algebra

Determines the nature of the roots of a quadratic equation.

Derivative Definition

Calculus

Definition of the derivative of a function at a point.

Derivative of a Constant

Calculus

The derivative of a constant is zero.

Derivative of a Constant Multiplied by a Function

Calculus

The derivative of a constant multiplied by a function is the constant times the derivative of the function.

Derivative of a Variable to a Power

Calculus

The power rule for derivatives states that the derivative of x raised to the power of n is n times x raised to the power of n minus 1.

Product Rule for Derivatives

Calculus

The product rule for derivatives states that the derivative of the product of two functions is the derivative of the first function times the second function plus the first function times the derivative of the second function.

Quotient Rule for Derivatives

Calculus

The quotient rule for derivatives states that the derivative of the quotient of two functions is the derivative of the numerator times the denominator minus the numerator times the derivative of the denominator, all divided by the square of the denominator.

Chain Rule for Derivatives

Calculus

The chain rule for derivatives states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function times the derivative of the inner function.

Derivative of a Addition of Subtraction of Functions

Calculus

The derivative of the sum or difference of two functions is the sum or difference of their derivatives.

Derivative of an Exponential Function

Calculus

The derivative of the exponential function is the exponential function itself.

Derivative of an Exponential To the Power of a Function

Calculus

The derivative of an exponential function with a variable exponent is the exponential function times the derivative of the exponent.

Derivative of a Natural Logarithm of a Function

Calculus

The derivative of the natural logarithm of a function is the derivative of the function divided by the function itself.

Derivative of Sine

Calculus

Basic derivative rule from calculus.

Integral of e^x

Calculus

Indefinite integral of the exponential function.

Complex number and Conjugate

Complex Analysis

A complex number z consists of a real part a and an imaginary part b. The conjugate of z is denoted by \bar{z} and is obtained by changing the sign of the imaginary part.

Modulus of a Complex Number

Complex Analysis

The modulus of a complex number z = a + bi is the distance from the origin to the point (a, b) in the complex plane.

Euler’s Identity

Complex Analysis

A fundamental identity combining e, i, π, 1, and 0.

Euler’s Formula

Complex Analysis

Relates complex exponentials to trigonometric functions.

Euler’s Formula in Polar Form

Complex Analysis

Represents a complex number in polar form, where |z| is the modulus and θ is the argument.

Contour Integral Definition

Complex Analysis

A contour integral of a complex function f(z) along a closed curve C in the complex plane.

Cauchy’s Theorem

Complex Analysis

If f(z) is analytic (holomorphic) on and inside a closed curve C, then the contour integral of f(z) around C is zero.

Cauchy’s Integral Formula

Complex Analysis

A fundamental formula in complex analysis that relates the value of an analytic function at a point to its values on a closed curve surrounding that point.

General Derivative Formula

Complex Analysis

A generalization of Cauchy’s integral formula that gives the nth derivative of an analytic function at a point in terms of a contour integral around that point.

Residue Theorem

Complex Analysis

A theorem in complex analysis that relates the residue of a function at a singularity to its behavior near that point.

Residue at a simple pole z0:

Complex Analysis

The residue of a function f at a simple pole z₀ is the limit as z approaches z₀ of (z - z₀)f(z).

Taylor Series Expansion

Complex Analysis

A series expansion of a complex function that represents the function as an infinite sum of terms calculated from the derivatives of the function at a single point.

Laurent Series Expansion

Complex Analysis

A series expansion of a complex function that includes both positive and negative powers of (z - a), used to represent functions with singularities.

Pi

Constants

The ratio of a circle's circumference to its diameter. Approximately equal to 3.141592653589793

Euler's Number

Constants

The base of the natural logarithm, approximately equal to 2.718281828459045

Golden Ratio

Constants

The golden ratio, approximately equal to 1.618033988749895

Imaginary Unit

Constants

The imaginary unit, defined as the square root of -1.

Euler-Mascheroni Constant

Constants

The Euler-Mascheroni constant, approximately equal to 0.577215664915366

Speed of Light

Constants

The speed of light in a vacuum, approximately equal to 299,792,458 meters per second.

Gravitational Constant

Constants

The gravitational constant, approximately equal to 6.67430 × 10^-11 m^3 kg^-1 s^-2.

Planck’s Constant

Constants

Planck’s constant, approximately equal to 6.62607015 × 10^-34 J·s.

Elementary Charge

Constants

The elementary charge, approximately equal to 1.602176634 × 10^-19 coulombs.

Boltzmann Constant

Constants

The Boltzmann constant, approximately equal to 1.380649 × 10^-23 J/K.

Coulomb’s Law

Electricity & MagnetismElectrostatics

The force between two point charges.

Electric Field

Electricity & MagnetismElectrostatics

The electric field at a point in space due to a point charge.

Gauss’s Law

Electricity & MagnetismElectrostatics

The electric flux through a closed surface is equal to the charge enclosed divided by the permittivity of free space.

Electric Potential

Electricity & MagnetismElectrostatics

The electric potential at a point in space due to a point charge.

Ohm’s Law

Electricity & MagnetismCurrent & Circuits

The relationship between voltage, current, and resistance in an electrical circuit.

Resistance

Electricity & MagnetismCurrent & Circuits

The resistance of an electrical component. The first formula relates resistance to voltage and current, while the second formula relates resistance to the material's resistivity, length, and cross-sectional area.

Electric Power

Electricity & MagnetismCurrent & Circuits

The power dissipated in an electrical component. The first formula relates power to voltage and current, while the second and third formulas relate power to current and resistance, and voltage and resistance, respectively.

Capacitance

Electricity & MagnetismCurrent & Circuits

The capacitance of a capacitor. The first formula relates capacitance to charge and voltage, while the second formula relates capacitance to the permittivity of free space, the area of the plates, and the distance between them.

Capacitors in Series/Parallel

Electricity & MagnetismCurrent & Circuits

The equivalent capacitance of capacitors connected in series or parallel. The first formula relates the equivalent capacitance to the individual capacitances in series, while the second formula relates the equivalent capacitance to the individual capacitances in parallel.

Resistors in Series/Parallel

Electricity & MagnetismCurrent & Circuits

The equivalent resistance of resistors connected in series or parallel. The first formula relates the equivalent resistance to the individual resistances in series, while the second formula relates the equivalent resistance to the individual resistances in parallel.

Magnetic Force (Moving Charge)

Electricity & MagnetismMagnetism & Electromagnetism

The magnetic force on a moving charged particle. The force is perpendicular to both the velocity of the particle and the magnetic field.

Magnetic Force (Current-Carrying Wire)

Electricity & MagnetismMagnetism & Electromagnetism

The magnetic force on a current-carrying wire. The force is perpendicular to both the current and the magnetic field.

Ampère’s Law

Electricity & MagnetismMagnetism & Electromagnetism

The line integral of the magnetic field around a closed loop is equal to the permeability of free space times the enclosed current.

Biot-Savart Law

Electricity & MagnetismMagnetism & Electromagnetism

The magnetic field produced at a point in space by a small segment of current-carrying wire.

Magnetic Flux

Electricity & MagnetismMagnetism & Electromagnetism

The magnetic flux through a surface. It is the integral of the magnetic field over the area.

Faraday’s Law of Induction

Electricity & MagnetismMagnetism & Electromagnetism

The induced electromotive force in a closed loop is equal to the negative rate of change of the magnetic flux through the loop.

Gauss’s Law (Electricity)

Electricity & MagnetismMaxwell’s Equations

The electric flux through a closed surface is equal to the charge enclosed divided by the permittivity of free space.

Gauss’s Law (Magnetism)

Electricity & MagnetismMaxwell’s Equations

The magnetic flux through a closed surface is always zero.

Faraday’s Law

Electricity & MagnetismMaxwell’s Equations

The induced electromotive force in a closed loop is equal to the negative rate of change of the magnetic flux through the loop.

Ampère’s-Maxwell Law

Electricity & MagnetismMaxwell’s Equations

The line integral of the magnetic field around a closed loop is equal to the permeability of free space times the enclosed current plus the displacement current.

Distance Formula

Geometry

Distance between two points in the plane.

Midpoint Formula

Geometry

Coordinates of the midpoint between two points.

Square

Geometry

Properties of a square.

Rectangle

Geometry

Properties of a rectangle.

Triangle

Geometry

Properties of a triangle.

Circle

Geometry

Properties of a circle.

Trapezoid

Geometry

Properties of a trapezoid.

Parallelogram

Geometry

Properties of a parallelogram.

Cube

Geometry

Properties of a cube.

Rectangular Prism / Box

Geometry

Properties of a rectangular prism or box.

Sphere

Geometry

Properties of a sphere with radius r.

Cylinder

Geometry

Properties of a cylinder with radius r and height h.

Cone

Geometry

Properties of a cone with radius r and height h.

Definition of Scalar, Vector, Matrix, and Tensor

Linear Algebra

Definitions of scalar, vector, matrix, and tensor.

Matrix Definition

Linear Algebra

A matrix is a rectangular array of numbers, symbols, or expressions arranged in rows and columns.

Matrix Addition

Linear Algebra

The sum of two matrices of the same dimensions is obtained by adding corresponding elements.

Norm of a Matrix

Linear Algebra

The norm of a matrix is a measure of its size, calculated as the square root of the sum of the squares of its elements.

Transpose of a Matrix A

Linear Algebra

The transpose of a matrix is obtained by swapping its rows and columns.

Transpose Property of Matricies A and B

Linear Algebra

The transpose of the sum of two matrices is equal to the sum of their transposes.

Inverse Property of Matricies A and B

Linear Algebra

The inverse of the product of two matrices is equal to the product of their inverses in reverse order.

Determinant Property of Matricies A and B

Linear Algebra

The determinant of the product of two matrices is equal to the product of their determinants.

Matrix Determinant (2x2)

Linear Algebra

The determinant of a 2x2 matrix is calculated as the product of the diagonal elements minus the product of the off-diagonal elements.

Matrix Determinant (3x3) using the rule of Sarrus

Linear Algebra

The determinant of a 3x3 matrix is calculated using the rule of Sarrus or cofactor expansion.

Matrix Determinant (3x3) using cofactor expansion

Linear Algebra

The determinant of a 3x3 matrix is calculated using the rule of Sarrus or cofactor expansion.

Matrix Inverse

Linear Algebra

The inverse of a matrix is a matrix that, when multiplied by the original matrix, gives the identity matrix.

Matrix Multiplication (2x2)

Linear Algebra

The product of two matrices is obtained by multiplying corresponding elements and summing them.

Matrix Multiplication (3x3)

Linear Algebra

The product of two matrices is obtained by multiplying corresponding elements and summing them.

Dot Product of Matrices

Linear Algebra

The dot product of two matrices is the sum of the products of their corresponding components.

Cross Product of Matrices

Linear Algebra

The cross product of two matrices is a vector that is perpendicular to both matrices.

Projection of Matrices

Linear Algebra

The projection of one matrix onto another is a measure of how much of the first matrix points in the direction of the second.

Eigenvalues of a Matrix

Linear Algebra

Eigenvalues and eigenvectors are special values and vectors associated with a matrix.

Average Velocity

Mechanics and KinematicsBasic Kinematics

The average velocity of an object over a given time interval.

Average Acceleration

Mechanics and KinematicsBasic Kinematics

The average acceleration of an object over a given time interval.

Displacement Formula

Mechanics and KinematicsBasic Kinematics

A formula for calculating displacement when initial velocity and acceleration are known.

Final Velocity Formula

Mechanics and KinematicsBasic Kinematics

A formula for calculating the final velocity of an object given its initial velocity, acceleration, and time.

Time Formula

Mechanics and KinematicsBasic Kinematics

A formula for calculating the time taken for an object to reach a certain velocity given its initial velocity, acceleration, and final velocity.

Acceleration Formula

Mechanics and KinematicsBasic Kinematics

A formula for calculating the acceleration of an object given its initial and final velocities and the time taken.

Newton’s First Law of Motion

Mechanics and KinematicsDynamics & Forces

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Newton’s Second Law of Motion

Mechanics and KinematicsDynamics & Forces

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Weight (Force of Gravity)

Mechanics and KinematicsDynamics & Forces

The force exerted on an object due to gravity.

Friction (Kinetic)

Mechanics and KinematicsDynamics & Forces

The force of kinetic friction acting on an object.

Friction (Static max)

Mechanics and KinematicsDynamics & Forces

The maximum force of static friction acting on an object.

Work

Mechanics and KinematicsWork, Energy, and Power

The work done by a constant force acting on an object.

Kinetic Energy

Mechanics and KinematicsWork, Energy, and Power

The energy possessed by an object due to its motion.

Potential Energy (Gravitational)

Mechanics and KinematicsWork, Energy, and Power

The energy possessed by an object due to its position in a gravitational field.

Work-Energy Theorem

Mechanics and KinematicsWork, Energy, and Power

The work done by a net force acting on an object equals the change in its kinetic energy.

Power

Mechanics and KinematicsWork, Energy, and Power

The rate at which work is done or energy is transferred.

Momentum

Mechanics and KinematicsMomentum & Collisions

The product of an object's mass and velocity.

Impulse

Mechanics and KinematicsMomentum & Collisions

The change in momentum of an object due to a force acting over a time interval.

Conservation of Linear Momentum

Mechanics and KinematicsMomentum & Collisions

The total linear momentum of a closed system remains constant over time.

Angular Velocity

Mechanics and KinematicsRotational Motion

The rate of change of angular displacement with respect to time.

Angular Acceleration

Mechanics and KinematicsRotational Motion

The rate of change of angular velocity with respect to time.

Linear to Rotational Conversion

Mechanics and KinematicsRotational Motion

The relationship between linear and rotational quantities.

Centripetal Acceleration

Mechanics and KinematicsRotational Motion

The acceleration of an object moving in a circular path.

Rotational Kinematic Equation

Mechanics and KinematicsRotational Motion

The relationship between angular displacement, initial angular velocity, angular acceleration, and time.

Simple Probability

Statistics and ProbabilityBasic Probability

The probability of an event A occurring.

Complement Rule

Statistics and ProbabilityBasic Probability

The probability of the complement of an event A occurring.

Addition Rule (Any Events)

Statistics and ProbabilityBasic Probability

The probability of the union of two events A and B occurring.

Addition Rule (Mutually Exclusive Events)

Statistics and ProbabilityBasic Probability

The probability of the union of two mutually exclusive events A and B occurring.

Multiplication Rule (Any Events)

Statistics and ProbabilityBasic Probability

The probability of the intersection of two events A and B occurring.

Multiplication Rule (Independent Events)

Statistics and ProbabilityBasic Probability

The probability of the intersection of two independent events A and B occurring.

Conditional Probability (Bayes’ Theorem)

Statistics and ProbabilityBasic Probability

The probability of event A occurring given that event B has occurred.

Factorials

Statistics and ProbabilityCombinatorics

The factorial of a positive integer n is the product of all positive integers less than or equal to n.

Permutations

Statistics and ProbabilityCombinatorics

The number of ways to arrange r objects from a set of n distinct objects.

Combinations

Statistics and ProbabilityCombinatorics

The number of ways to choose r objects from a set of n distinct objects.

Mean (Average)

Statistics and ProbabilityStatistics

The mean (average) of a set of n numbers is the sum of the numbers divided by n.

Variance

Statistics and ProbabilityStatistics

The variance of a set of n numbers is the average of the squared differences from the mean.

Standard Deviation

Statistics and ProbabilityStatistics

The standard deviation of a set of n numbers is the square root of the variance.

Z-Score

Statistics and ProbabilityStatistics

The Z-score of a data point is the number of standard deviations it is from the mean.

Normal Distribution Formula

Statistics and ProbabilityProbability Distributions

The probability density function of a normal distribution with mean μ and standard deviation σ.

Binomial Probability Formula

Statistics and ProbabilityProbability Distributions

The probability of getting exactly k successes in n independent Bernoulli trials, each with success probability p.

Binomial Mean & Standard Deviation

Statistics and ProbabilityProbability Distributions

The mean and standard deviation of a binomial distribution with n trials and success probability p.

Poisson Distribution Formula

Statistics and ProbabilityProbability Distributions

The probability of observing k events in a fixed interval of time or space, given the average number of events (λt) in that interval.

Operators

Symbols

The basic mathematical operators for arithmetic, comparison, and other operations.

Delta

Symbols

The symbol Δ is used in mathematics to represent change or difference. It is often used to denote the difference between two values, such as Δx (the change in x) or Δy (the change in y).

Differential

Symbols

The differential is a fundamental concept in calculus used to represent an infinitesimally small change in a variable.

Integral

Symbols

The integral is a fundamental concept in calculus used to calculate the area under a curve or the accumulation of a quantity.

Summation

Symbols

The summation is a fundamental concept in mathematics used to calculate the sum of a sequence of numbers.

Product

Symbols

The product is a fundamental concept in mathematics used to calculate the product of a sequence of numbers.

Set

Symbols

A collection of distinct objects, considered as an object in its own right.

Intersection

Symbols

The intersection of two sets A and B is the set of elements that are in both A and B.

Union

Symbols

The union of two sets A and B is the set of elements that are in either A or B (or both).

Proper Subset

Symbols

Set A is a proper subset of set B if every element of A is in B, but A is not equal to B.

Subset

Symbols

Set A is a subset of set B if every element of A is in B.

Proper Superset

Symbols

Set A is a proper superset of set B if every element of B is in A, but A is not equal to B.

Superset

Symbols

Set A is a superset of set B if every element of B is in A.

Not Subset

Symbols

Set A is not a subset of set B.

Not Superset

Symbols

Set A is not a superset of set B.

Complement

Symbols

The complement of set A is the set of all elements in the universal set that are not in A.

Relative Complement

Symbols

The relative complement of set B in set A is the set of elements that are in A but not in B.

Symmetric Difference

Symbols

The symmetric difference of two sets A and B is the set of elements that are in either A or B, but not in both.

Set Membership

Symbols

Element x is a member of set A.

No Set Membership

Symbols

Element x is not a member of set A.

Ordered Pair

Symbols

An ordered pair is a collection of two elements where the order matters.

Cartesian Product

Symbols

The Cartesian product of two sets A and B is the set of all ordered pairs (a, b) where a is in A and b is in B.

Cardinality

Symbols

The cardinality of a set A is the number of elements in A.

Empty Set

Symbols

The empty set is the set that contains no elements.

Universal Set

Symbols

The universal set is the set that contains all elements under consideration.

Natural Numbers

Symbols

The set of all natural numbers.

Rational Numbers

Symbols

The set of all rational numbers.

Real Numbers

Symbols

The set of all real numbers.

Complex Numbers

Symbols

The set of all complex numbers.

Integer Numbers

Symbols

The set of all integer numbers.

The Ideal Gas Law

Thermodynamics

The relationship between pressure, volume, temperature, and the amount of an ideal gas.

First Law of Thermodynamics

Thermodynamics

The change in internal energy of a system is equal to the heat added to the system minus the work done by the system.

Heat and Work in Thermodynamics

Thermodynamics

Relationships between heat, work, and internal energy in thermodynamics.

Second Law of Thermodynamics

Thermodynamics

The entropy of an isolated system always increases over time.

Enthalpy (H) and Gibbs Free Energy (G)

Thermodynamics

The enthalpy and Gibbs free energy of a system.

Pythagorean Theorem

Trigonometry

Relates the sides of a right triangle.

Right triangle definition

Trigonometry

Properties of a right triangle with angle θ.

Unit Circle Definition

Trigonometry

For this definition θ is any angle. The hypotenuse is always 1, the opposite is the y-coordinate, and the adjacent is the x-coordinate.

Tangent and Cotangent Identities

Trigonometry

Tangent and cotangent in terms of sine and cosine.

Reciprocal Identities

Trigonometry

Reciprocal identities for trigonometric functions.

Pythagorean Identities

Trigonometry

Pythagorean identities for trigonometric functions.

Even/Odd Formulas

Trigonometry

Properties of even and odd trigonometric functions.

Periodic Formulas

Trigonometry

Properties of periodic trigonometric functions.

Degrees to Radians Formulas

Trigonometry

Converting between degrees and radians. If x is an angle in degrees and t is an angle in radians.

Half Angle Formulas

Trigonometry

Formulas for the sine, cosine, and tangent of half an angle.

Double-Angle Formulas

Trigonometry

Formulas for the sine, cosine, and tangent of double an angle.

Sum and Difference Formulas

Trigonometry

Formulas for the sine and cosine of the sum or difference of two angles.

Product to Sum Formulas

Trigonometry

Formulas for converting products of trigonometric functions to sums.

Sum to Product Formulas

Trigonometry

Formulas for converting sums of trigonometric functions to products.

Cofunction Formulas

Trigonometry

Formulas relating sine and cosine of complementary angles.

Wave Speed Formula

Waves & OpticsBasic Wave Properties

The speed of a wave is equal to the product of its frequency and wavelength.

Period Formula

Waves & OpticsBasic Wave Properties

The period of a wave is equal to the reciprocal of its frequency.

Angular Frequency Formula

Waves & OpticsBasic Wave Properties

The angular frequency of a wave is equal to 2π times its frequency.

Wave Number Formula

Waves & OpticsBasic Wave Properties

The wave number is equal to the angular frequency divided by the wave speed.

General Wave Equation

Waves & OpticsBasic Wave Properties

The general equation for a wave traveling in the x-direction with speed v.

Index of Refraction

Waves & OpticsGeometric Optics

The index of refraction is equal to the speed of light in a vacuum divided by the speed of light in the material.

Snell's Law

Waves & OpticsGeometric Optics

The relationship between the angles of incidence and refraction when light passes through the interface of two different media.

Critical Angle

Waves & OpticsGeometric Optics

The critical angle is the angle of incidence at which light is completely reflected at the interface of two different media.

Spherical Mirror / Thin Lens Equation

Waves & OpticsGeometric Optics

The relationship between the focal length of a spherical mirror or thin lens and the object and image distances.

Magnification Formula

Waves & OpticsGeometric Optics

The magnification of an image formed by a spherical mirror or thin lens.

Constructive Interference

Waves & OpticsWave Optics

The condition for constructive interference in a double-slit experiment.

Destructive Interference

Waves & OpticsWave Optics

The condition for destructive interference in a double-slit experiment.

Young’s Double-Slit Fringe Separation

Waves & OpticsWave Optics

The separation between adjacent bright fringes in a double-slit experiment.

Single Slit Diffraction (Minima)

Waves & OpticsWave Optics

The condition for minima in a single-slit diffraction pattern.

Bragg’s Law (X-Ray Diffraction)

Waves & OpticsWave Optics

The condition for constructive interference in X-ray diffraction.

Malus’s Law (Polarization)

Waves & OpticsWave Optics

The intensity of polarized light after passing through a polarizer.