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### A Glossary of Mathematical Terms - L

#### Lattice points

Points in the coordinate plane with integer coordinates.

#### Least common multiple (L.C.M.)

he least common multiple of two or more natural numbers is the smallest counting number that is a multiple of each of the given numbers.

#### Like terms

In an expression, tyerms that have the same variables raised to the same exponents (so that they can be summed up).

#### Line

A straight path that proceeds inifinitely in two directions.

#### Line graph

A kind of plot for data, when dots are joined by segments. Also Broken line graph.

#### Line of symmetry

A line that divides a figure into to parts, each a mirror of the other.

#### Line plot

A display of data along the real line, with some symbol indicating the frequency or tally of information about a single category.

#### Linear equation

A first degree euqation.

#### Linear pair (of angles)

Two adjacent angles whose sum is 180°. (In Italian two angles with this property are simply "adiacenti").

#### Linear term of an equation

The term with the variable at the first degree.

#### Locus (pl. loci)

A set of points (in the line, in the plane or in the space) that satisfy a given condition.

#### Logarithmic function

A function of the form y = loga(x).

#### Lowest terms

See Fraction.

first published on september 01 2003 - last updated on september 01 2003