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bar chart
Graphique mà barres

Phallic diagram. A graph that uses vertical bars to display information, and the lengths of the bars are proportional to the quantities they represent. This method is often used to present statistical data.


base. base
base f

Foundation base. 1- The numerical rule is a method
Grouping used in a number system based on place value.
In the decimal numerical system, grouping and place value are based on 10. For example, in base 10, the number equals 423 (2x10) + (4x100) 3. And in base 5, the number 423 equals 25 x 4) + (25) +3.

2 - In expressions such as 45, 4 is called a base and 5 is called an exponent. This use of the word “base” is closely related to its use in the context of logarithms.

In base 10 logarithms, it is 1.6721 = 10g47, which means that 47 = 101.6721.


bearing
gisement m. azimuth m

Angular direction. An expression specific to navigation and surveying. The angular direction of point A from observation point O is the angle between line OA and the north line passing through, measured clockwise from the north line.

In the drawing above, the angular direction of A from O is 210°. The three-digit angular direction of 0 of A is 030.


billion
billion m

A billion. One million million 1012 = 1,000,000,000,000. In the United States of America (a billion equals one thousand million (109), which is becoming more common in Britain.


bimodal
bimodal

bimodal. A term used to describe distributions of data that show two modes or peaks in frequency.
Percentage of sky covered by clouds

The above distribution is a bimodal distribution with the modes 0 and 100.


binary
binaire

bilateral . 1 - A numerical system based on grouping numbers into pairs. Binary encoding requires the use of only two symbols, 0 and 1, and its column headers or the values ​​of their positions in this encoding are base (powers) of 2:

64 32 16 8 4 21 . . .
Hence the number
29 for 1 1 10 1 in binary
And 92 for 1 0 1 1 100 in binary

2 - The binary operation is a rule for adding two members of the set to produce a third member of the set. The four basic arithmetic operations - i.e. addition, subtraction, multiplication and division - are examples of binary operations on the set of real numbers.


binomial
binôme m

Oneness. A polynomial with two variables, such as: .7x + 4y
The numbers in the rows of Pascal's triangle are called singular coefficients.

The numbers in successive rows match the coefficients of the terms when (x+y)n expands with powers of x powers and y for different values ​​of n. For example:
( x + y )5 = x5 + 5x4y + 10x3y2 + 10x2y3 + 5xy + ys


bisect
bisectrice f. media f

Halving. Bisection is cutting in half. This term is often used in an engineering sense.

In the drawing, line BD bisects angle ABC. Line DE bisects line AB.


boundary
limit f

Limit . The edge of a shape is the curve or curves that define the outer edges of the shape.

The edge of a pentagon consists of its sides.
The limit of a circle is its circumference.


brackets
parentheses fpl

Crescent brackets. Parentheses are used to indicate the order in which operations should be performed. For example:

7+ (2x3) = 7 + 6 = 13
(7 + 2) x3 = 9x3 = 27

Elementary algebra often involves inserting or removing parentheses when distributing one operation over another, for example:

6x2y + 9xy = 3xy ( 2x + 3y² )