MATH GLOSSARY

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Lambda Lambda is the eleventh letter of the Greek alphabet and is used for wavelength in physics.
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Lateral The flat sides of a geometric solid are generally termed the Lateral sides or Lateral surface area.
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Lateral Surface Area The Lateral Surface Area of a geometric solid is the expanse of the flat sides (or smooth sides).
Be careful, some solids have faces that are termed bases and not lateral surfaces.
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Law of Cosines The familiar Pythagorean Theorem is a special case of the Law of Cosines.
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Law of Sines The ratio of the sine of any angle within any specific triangle and the length of the opposite side is a constant.
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Leading Coefficient Most typically we write polynomials with the first term having the highest order, or power.
The coefficient of this leading term is literally the Leading Coefficient.
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Leading Term The first term in a polynomial, most typically the highest-order term, is the Leading Term of the polynomial.
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Least Common Denominator When two or more fractions are being summed we want the LCD to facilitate the operation of addition.
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Least Common Multiple The LCM is most typically applied to integers.
It is the smallest value evenly divisible by each number for which we seek the LCM.
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Least Upper Bound As the name implies, a function often has a highest value or a limit beyond which it may not realize.
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Leg, Trapezoid The Leg of a Trapezoid is one of the non-parallel sides.
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Leg, Triangle Most generally the legs of a triangle refer to the perpendicular sides of a right triangle only.
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Lemma A little, inconsequential theorem is sometimes called a Lemma.
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Like Terms Like Terms have the same variables raised to identical powers.
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Limit Some functions have a Limit, a bound beyond which they may not realize.
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Line A collection of points that comprise the shortest path between two points in Euclidean geometry is a Line; all points in a Line are collinear and, of course, coplanar.
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Line Segment A section of a line, with endpoints on both ends, is a Line Segment.
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Linear As the first four letters imply, Linear means "of a line" or "lined up" in a collinear fashion.
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Linear Pair Two adjacent supplementary angles form a Linear Pair.
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Local Maximum A Local Maximum is a high spot on the graph of a function.
Also termed a relative maximum, it is the greatest value within a defined neighborhood.
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Local Minimum A Local Minimum is a low spot on the graph of a function.
Also termed a relative minimum, it is the least value within a defined neighborhood.
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Loci The points that comprise a function (or graph thereof) are its Loci.
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Locus A single point on a function or on its graph is a Locus.
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Logarithm A Logarithm is a number associated with a power and a base; the function is the inverse of an exponential function.
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Logic Logic takes many forms and is instrumental in understanding the language of mathematics.
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Long Division Adolph Hitler actually had two middle names: Long Division.
Just kidding.
And we should not kid about an evil, pestiferous maniac like Hitler.
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Lower Bound As the name suggests, some functions are limited on the low side.
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Lower Quartile Also first quartile, it is the 25th percentile, where 75 percent of the data is greater than this value.
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Lower Quintile The 20th percentile; also first quintile.
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