Vocabulary for IELTS Academic (Band 8-9) - Maths and Graphs

a measure of the dispersion or spread of a set of data points in statistics, representing the average squared deviation from the mean

a finite sequence of well-defined, mathematical instructions for completing a specific task or solving a problem

the rate at which a function changes with respect to its independent variable

a mathematical concept representing the total accumulation of a quantity, often represented by the area under a curve on a graph

the value that a function or sequence approaches as its input or index gets close to a particular value

a rectangular array of numbers or symbols organized in rows and columns, commonly used in linear algebra for representing equations, transformations, and vector operations

the branch of mathematics that comprises differentials and integrals

a branch of mathematics that studies and classifies phenomena characterized by sudden shifts in behavior arising from small changes in circumstances

a circular graphic, similar to a pie chart, with a blank center, used to represent proportional data

a graphic representation of the step-by-step sequence of functions in a computer program

a graphical representation using circles (bubbles) to display three dimensions of data: two on the axis and one represented by the bubble size

a statistical measure that divides a dataset into four equal parts, representing points that indicate the distribution of the data

a financial chart used to represent price movements, typically displaying open, high, low, and close values for a specific time period

the non-empty area formed by the intersection of a solid object in three-dimensional space and a plane, or the corresponding concept in higher-dimensional spaces