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Academia - Collins - Scientific Pocket Dictionaries - Mathematics - English - French - Arabic Letter 1_ L

latin square
carré m latin

Latin square. It is a square alignment of numbers or letters in which each number or letter appears once in each row or column. For example.

The table composed of a group must be a Latin square.

latitude
latitude f

Latitude. The parallel of latitude is a circle drawn on the surface of the Earth and its center is located on the line connecting the North and South Poles. All lines of latitude are parallel, hence the English name parallel of latitude.

The latitude of any point is given by the angle LAOB where O is the center of the Earth and A is a point on the required latitude and B is a point on the equator. A and B are on the same longitude. With the exception of the equator, all lines of latitude are small circles.

A is located on latitude 60° north.

limit
limite f

limit. A sequence is said to approach a limit if its terms approach a certain value and get closer and closer as the number of terms increases. Similarly, the sum of a series may approach a limit. For example:

2 16 115 ,17.8 ,134 ,1112 The limit is... 2

7 7.0001 ,7.001 ,7.1.7.01 The limit is... 7

8 1/8+1/4+1/2+1+2+4 The limit is... 8

9 227+29+23+2+4 The limit is... 9

The limit of the sum of a geometric sequence... + a+ar+ar2 + ar3 geometric progression

is
a/(1 - r), (- <r<1)

line segment
segment m

line segment. A straight line is part of a straight line:

For example: AB is a straight line as it is part of line A. Points A and B do not necessarily have to be part of the straight line.

linear
linéaire

Linear. A general term for systems that relate to straight lines in some way.

A linear relationship between two variables X and 7 is a relationship that can be represented graphically by a straight line. Equations that carry such relationships linear equations can be written in the form y=mx+c.

y = 2x + 3

The value of m gives the gradient of the line graph. The value of C gives the intercept of the graph on the y-axis.

litre
litre m

litre. A measure of volume equal to 1000 cubic centimetres and a gallon holds just over 4.5 litres.