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Calculus

Calculus is the mathematics of change and accumulation. It is built on two fundamental operations — differentiation (finding rates of change) and integration (finding accumulated quantities). From limits and derivatives to integrals and infinite series, this page links to every calculus term, formula, and worked example on Mathwords.

Key Concepts

Curve Sketching

Curve sketching is the systematic process of using calculus — specifically the first and second derivatives — to anal...

Deleted Neighborhood

A deleted neighborhood of a point $a$ is the set of all points within a certain distance $\delta$ of $a$, but excludi...

Area between Curves

Area between curves is the total region enclosed between two functions, calculated by integrating the absolute value ...

Absolute Convergence

Absolute convergence is a property of an infinite series that converges even when every term is replaced by its absol...

Absolutely Convergent

Absolute convergence is a property of an infinite series that converges even when every term is replaced by its absol...

Converge Absolutely

Absolute convergence is a property of an infinite series that converges even when every term is replaced by its absol...

Area below a Curve

Area under a curve is the region enclosed between the graph of a function y = f(x) and the x-axis over a given interv...

Area under a Curve

Area under a curve is the region enclosed between the graph of a function y = f(x) and the x-axis over a given interv...

Alternating Series Remainder

The Alternating Series Remainder is the error bound that tells you how close the nth partial sum of a convergent alte...

Area Using Parametric Equations

Area Using Parametric Equations is a method for finding the area between a parametrically defined curve and the x-axi...

Parametric Integral Formula

Area Using Parametric Equations is a method for finding the area between a parametrically defined curve and the x-axi...

Washer Method

The Washer Method is a technique for finding the volume of a solid of revolution when the region being rotated does n...

All Calculus Terms (233)

Frequently Asked Questions

What is calculus?
Calculus is the branch of mathematics that studies continuous change. It has two main branches: differential calculus (concerned with rates of change and slopes of curves) and integral calculus (concerned with accumulation of quantities and areas under curves).
What is the difference between differential and integral calculus?
Differential calculus focuses on derivatives — the instantaneous rate of change of a function. Integral calculus focuses on integrals — the accumulation of quantities, often interpreted as area under a curve. The Fundamental Theorem of Calculus connects them: differentiation and integration are inverse operations.
Do I need calculus for college?
Many STEM majors (science, technology, engineering, mathematics) require calculus. Business and economics programs often require at least one semester. AP Calculus (AB or BC) can earn college credit and strengthen college applications.

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