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earnings before interest and taxes

Earnings Before Interest and TaxesEBIT

Revenue - Operating Expenses

Earnings Before Interest and Taxeseccentricity

Revenue - Operating Expenses

Deviation of a conic from a circular shapeeconomics

study of production, distribution, and consumption of goods and servicesedges

line segment joining two verticeseffective annual yield rate

Yield rate taking compounding periods into effecteigenvalue

set of scalars associated with a linear system of equationselapsed time

Amount of time between two dateselimination

Eliminating a variable in a system of equations to solve for another variable or variableselimination method

Eliminating a variable in a system of equations to solve for another variable or variablesellipse

a regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points (the foci) is constantempirical rule

Provides estimate for the spread of data in a normal distribution. 68% of the data will fall within one standard deviation of the mean. 95% of the data will fall within two standard deviations of the mean. 99.7% of the data will fall within three standard deviations of the meanempty set

The set with no elementsencryption

∅

encoding a message such that anybody outside authorized parties cannot read itendpoint

end of a ray, line segment, or intervalenergy

property that must be transferred to an object in order to perform work onengineering

the application of science and mathematics by which the properties of matter and the sources of energy in nature are made useful to peopleentropy

refers to disorder or uncertaintyequated time

determine time from cash flow streamsequation

a statement declaring two mathematical expressions are equalequation of a circle

formula to graph a circle and the points on the circleequation of a line

(x - h)^{2}+ (y - k)^{2}= r^{2}

formula to graph the points on a lineequation of a plane

y = mx + b

formula to graph the points in a planeequation of exchange

Ax + By + Cz + D = 0

equation relating money, price, velocity, and quantityequilateral triangle

MV = PQ

A triangle with 3 equal sidesequivalent annual cost

formula comparing two different projects to see which one is more valuableequivalent coordinates

Relating cartesian and polar coordinatesequivalent expressions

see equationsequivalent fractions

Two fractions with equal values, using a common factor to scale the numerator and denominatorestimate sum

Using rounding to estimate the total of numbers using their rounded figuresestimation

rough calculation of a number or quantityeuclidean norm

magnitude or length of a vectoreuclids algorithm

method for computing the greatest common divisor (GCD) of two numberseuclids extended algorithm

division algorithm for integerseuler

Famous mathematician who developed Euler's constantEuler's Formula

Equation relating 5 mathematical constantsEulers Constant

e^{iπ}+ 1 = 0

limiting difference between a harmonic series and natural logarithmeulers totient

0.5772156649

the number of positive integers that are relatively prime toeven numbers

Numbers divisible by 2evil numbers

A number with an even number of 1s in the binary expansionexabyte

multiple of the unit byte for digital informationexact time

excel

A spreadsheet softwareexchange matrix

row-reversedr or column-reversed version of the identity matrixexchange rate

The rate to convert one unit of currency to another unit of currencyexpand polynomials

Write out the multiplication of polynomials term by termexpanded notation

Writing out a number to show the sum of each digit multiplied by the place valueexpected frequency

9256 = 9(1000) + 2(100) + 5(10) + 6(1)

counts calculated using probability theoryexpected return

amount of profit or loss an investor anticipates on an investmentexpected value

predicted value of a variable or eventexperiment

In statistics, a controlled and repeatable processexponent

The power to raise a numberexponential distribution

probability distribution that describes the time between events in a Poisson point processexponential fit

Fit a curve to a set of data using an exponential functionexponential growth

growth whose rate increase in proportion to the total numberexponential identity

Identity using exponents for equivalent expressionsexponential smoothing

Create smoothed data using exponential functionsexports

goods and services produced in one country and purchased by citizens of another countryexpression

finite combination of symbols