## List of Math Words That Start With E

Below are common math words that start with e.

- Equation
- Exponent
- Ellipse
- Eigenvalue
- Equilateral triangle
- Exponential function
- Euclidean geometry
- Euler’s formula
- Expected value
- Exterior angle
- Equivalence relation
- Exponentiation
- Even number
- Euler’s number (e)
- Ellipsoid
- Elliptic curve
- Event
- Equilibrium point
- Epsilon-delta proof
- Expansion
- Exclusion principle
- Exponent rules
- Equiangular
- Exterior angle theorem
- Excenter
- Elliptic integral
- Euclidean algorithm
- Exponential growth
- Echelon form
- Endomorphism
- Empty set
- Expected frequency
- Exponential decay
- Euler’s totient function
- Eigenfunction
- Extremum
- Elliptic function
- Expected shortfall
- Ensemble average
- Entropy
- Excentricity
- Exponential distribution
- Equidistant
- Ellipsoid of inertia
- Echelon matrix
- Equal interval
- Exchange rate
- Expected utility
- Empirical rule
- Eccentricity

## Math Terms That Start With E (Divided by Subjects)

### Geometry Terms That Start With E

**Equilateral Triangle:**A triangle with all sides of equal length.**Edge:**A line segment where two faces of a solid meet.**Exterior Angle:**An angle formed by one side of a polygon and the extension of an adjacent side.**Ellipse:**A curved shape with two focal points, where the sum of distances to the foci remains constant.**Equidistant:**At an equal distance from two or more points.**Euler’s Formula:**Relates the number of vertices, edges, and faces in a polyhedron: V – E + F = 2.**Endpoint:**A point at the end of a line segment or ray.**Elevation:**The vertical angle between a line of sight and a horizontal plane.**Equation of a Line:**A linear relationship expressed algebraically.**Edge Length:**The distance along an edge or side of a geometric figure.

### Algebra Terms That Start With E

**Equation:**Mathematical statement with an equals sign.**Exponent:**Power to which a base is raised.**Expression:**Mathematical phrase containing numbers and/or variables.**Equilateral Triangle:**Triangle with all sides and angles equal.**Extrapolation:**Extending data trend beyond observed range.**Ellipse:**Oval shape formed by intersecting plane and cone.**Exponential Growth:**Rapid increase based on a constant ratio.**Eigenvalue:**Scalar factor in eigenvector transformation.**Excluded Value:**Input that makes a denominator zero in a fraction.**Elimination Method:**Solving a system of equations by canceling variables.

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