In this article, you will find a comprehensive list of math words that start with the letter “e.

**Equation-**A mathematical statement that asserts the equality of two expressions.**Exponent-**A number denoting how many times a base is multiplied by itself.**Ellipse-**A geometric shape resembling a flattened circle.**Eigenvalue-**A special number in linear algebra associated with a matrix.**Eigenvector-**A non-zero vector that changes at most by a scalar factor when a linear transformation is applied to it.**Estimation-**The process of finding an approximation.**Euclidean-**Pertaining to the geometry of flat space.**Exponential-**Involving an exponent in the expression.**Equilateral-**All sides and angles are equal.**Euler’s Number-**The base of the natural logarithm, approximately 2.718.**Extremum-**A point where a function takes a maximum or minimum value.**Expectation-**The average value of a random variable.**Extrapolation-**Extending a graph, curve, or range of values by inferring unknown values.**Equivalence-**The condition of being equal in value, function, or meaning.**Error-**The difference between the estimated value and the true value.**Empirical-**Based on observations or experience rather than theory.**Event-**A set of outcomes in a probability space.**Euclidean Algorithm-**An efficient method for computing the greatest common divisor.**Exponential Growth-**Growth whose rate becomes ever more rapid.**Equiangular-**Having all angles equal.**Envelope-**A curve or surface that is tangent to a family of curves or surfaces.**Equidistant-**Equally distant from a set of points.**Eccentricity-**A measure of how much a conic section deviates from being circular.**Element-**An individual object within a set.**Equal-**Being the same in quantity, size, degree, or value.**Empirical Rule-**A statistical rule describing the density of data within standard deviations.**Ergodic-**Involving the hypothesis that over a long period of time all parts of a system will be accessed equally.**Exclude-**To leave out or omit.**Enumeration-**The action of mentioning things one by one.**Equiprobable-**Having an equal probability of occurring.**Eigen-**Related to inherent values and vectors in linear algebra.**Expansion-**The process of expressing a function in the form of a sum.**Endpoints-**The points at the ends of a line segment or the points of intersection of a function and the axes.