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Vocabolario per IELTS Academic (Punteggio 6-7) - Matematica e Grafici

Qui, imparerai alcune parole inglesi relative alla matematica e ai grafici che sono necessarie per l'esame accademico IELTS.

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Vocabulary for Academic IELTS (6-7)
logarithm
logarithm
[sostantivo]

a mathematical function that represents the exponent to which a fixed number, called the base, must be raised to produce a given number

logaritmi

logaritmi

Ex: Astronomers apply logarithms to express stellar magnitudes and measure the brightness of celestial objects. 

Gli astronomi applicano i logaritmi per esprimere le magnitudini stellari e misurare la luminosità degli oggetti celesti.

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theorem
theorem
[sostantivo]

a statement or proposition that has been proven to be true based on previously established axioms, definitions, and other theorems within a particular mathematical or logical system

teorema

teorema

Ex: Students often encounter various theorems while studying advanced mathematics. 

Gli studenti spesso incontrano vari teoremi mentre studiano matematica avanzata.

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vector
vector
[sostantivo]

an ordered set of numbers that describes both magnitude and direction, commonly used to represent quantities like displacement, velocity, or force in physics and engineering

vettore, vettore

vettore, vettore

Ex: The force exerted by a tensioned rope can be represented as a vector in mechanics. 

La forza esercitata da una corda tesa può essere rappresentata come un vettore in meccanica.

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function
function
[sostantivo]

(mathematics) a quantity whose value changes according to another quantity's varying value

funzione

funzione

Ex: Statisticians analyze data using functions such as mean, median, and standard deviation to understand distributions and trends. 
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pi
pi
[sostantivo]

a mathematical constant representing the ratio of a circle's circumference to its diameter, approximately equal to 3.14159

pi, pi greco

pi, pi greco

Ex: The circumference of a semicircle is C = π * r, showcasing the presence of pi in geometric calculations. 

La circonferenza di un semicerchio è C = π * r, che mostra la presenza di pi nei calcoli geometrici.

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series
series
[sostantivo]

a mathematical representation of the sum of the terms of a sequence, often denoted by the symbol Σ (sigma), where the terms are added together in a specified order

serie, successione

serie, successione

Ex: The alternating series test is a criterion used to determine the convergence of series with alternating signs. 

Il test delle serie alternate è un criterio utilizzato per determinare la convergenza di serie con segni alternati.

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trigonometry
trigonometry
[sostantivo]

a branch of mathematics that deals with the relationships between the angles and sides of triangles

trigonometria

trigonometria

Ex: Trigonometry plays a key role in fields such as physics, engineering, and computer science, where understanding angles and periodic functions is essential. 

La trigonometria svolge un ruolo chiave in campi come la fisica, l'ingegneria e l'informatica, dove la comprensione degli angoli e delle funzioni periodiche è essenziale.

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quotient
quotient
[sostantivo]

the result obtained by dividing one quantity or number by another, expressed as the outcome of a division operation

quoziente

quoziente

Ex: The quotient of 50 and 10 is 5, reflecting the result of their division. 

Il quoziente di 50 e 10 è 5, che riflette il risultato della loro divisione.

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hypotenuse
hypotenuse
[sostantivo]

the longest side of a right-angled triangle, opposite the right angle, and defined as the side opposite the right angle in a right-angled triangle

ipotenusa, il lato più lungo di un triangolo rettangolo

ipotenusa, il lato più lungo di un triangolo rettangolo

Ex: Trigonometric ratios like sine, cosine, and tangent involve the relationship between the sides of a right triangle, including the hypotenuse. 

I rapporti trigonometrici come seno, coseno e tangente coinvolgono la relazione tra i lati di un triangolo rettangolo, compresa l'ipotenusa.

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interval
interval
[sostantivo]

a set of real numbers that includes all the numbers between any two specified numbers within the set

intervallo, spazio

intervallo, spazio

Ex: An interval like [2, 2] includes only the number 2, as both endpoints are the same. 
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grid
grid
[sostantivo]

a network of regularly spaced horizontal and vertical lines used to locate, measure, or plot positions

griglia,  reticolo

griglia, reticolo

Ex: Sarah divided the page into squares using a simple grid. 
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median
median
[sostantivo]

a statistical measure that represents the middle value of a data set when the values are arranged in ascending or descending order

mediana, valore mediano

mediana, valore mediano

Ex: For the series {20, 25, 30, 35, 40, 45}, the median is 32.5, calculated as the average of 30 and 35. 

Per la serie {20, 25, 30, 35, 40, 45}, la mediana è 32.5, calcolata come la media di 30 e 35.

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mode
mode
[sostantivo]

the value that appears most frequently in a data set

moda, valore modale

moda, valore modale

Ex: There is no mode if every value appears only once. 
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infographic
infographic
[sostantivo]

a visual representation of information or data, designed to convey complex information quickly and clearly

infografica, rappresentazione visiva di informazioni

infografica, rappresentazione visiva di informazioni

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distribution
distribution
[sostantivo]

(statistics) an arrangement of values of a variable showing how often each occurs, either observed or theoretical

distribuzione, ripartizione

distribuzione, ripartizione

Ex: Probability theory explains the expected distribution of outcomes. 
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mean
mean
[sostantivo]

(mathematics) the average value of a set of quantities calculated by adding them, and dividing them by the total number of the quantities

medio

medio

Ex: The mean of the test results was used to assess overall student achievement. 
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cluster
cluster
[sostantivo]

a group of similar things or people that are close together

Ex: A small cluster of restaurants has opened near the station. 
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histogram
histogram
[sostantivo]

a diagram consisting of bars with different heights that represent the amount of a variable

istogramma

istogramma

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sector
sector
[sostantivo]

a portion of a circle, defined by an arc and the two radii that connect the arc's endpoints to the circle's center

settore, porzione

settore, porzione

Ex: The agricultural field was divided into sectors for planting different crops, each with its own irrigation system. 
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ratio
ratio
[sostantivo]

the result of dividing one number, quantity, or expression by another

rapporto

rapporto

Ex: The student explained the ratio in the equation. 
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