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Integral Calculus Simulations

A collection of interactive 3D visualizations and simulations to help you master concepts in integral calculus.

Antiderivatives and Indefinite Integrals - Theory & Concepts

Understanding antiderivatives, indefinite integral notation, basic integration formulas, and properties of linearity.

Simulation: Family of Antiderivatives

Legend

f(x): Original Function
F(x) + C: Antiderivative
Other Family Members

Observe how adjusting the constant C shifts the curve vertically without altering its shape or instantaneous slope.

xy

Definite Integrals - Theory & Concepts

Understanding Riemann sums, the Fundamental Theorem of Calculus, properties of definite integrals, and improper integrals.

Simulation: Riemann Sums & Area

4
Coarse (2)Fine (100)

Area Analysis

Approximation:1.7500
Exact Integral:2.6666
Absolute Error:0.9166

As $n \to \infty$, the width $\Delta x \to 0$, and the Riemann sum converges precisely to the definite integral.

0.000.251.002.25a=0b=2

Techniques of Integration - Theory & Concepts

Mastering methods for evaluating complex integrals: u-substitution, integration by parts, trigonometric integrals, and partial fractions.

Interactive Lab: Integration by Parts (LIATE)

Current Problem:
xexdx\int x e^x \, dx

LIATE Priority List

LLogarithmic
IInverse Trig
AAlgebraic
TTrigonometric
EExponential

The function type highest on this list should be selected as u.

Which part should be u?Select the function based on the LIATE rule.

Applications of Integration - Theory & Concepts

Exploring the applications of definite integrals: finding the area between curves, calculating the volume of solids of revolution, determining arc length, finding the center of mass, fluid pressure, work, and surface area.

Area Between Curves Visualizer

The shaded region represents the area where f(x) ≥ g(x).

Multiple Integrals - Theory & Concepts

Extending the concept of integration to functions of two or three variables: evaluating double and triple integrals, changing coordinate systems, and exploring their applications.

Double Integral & Volume Visualizer

Increase resolution to see the Riemann sum converge to the exact volume. Note: High resolution may affect performance.

Calculated Volume (Approx.)

25.190
Vi=1nj=1nf(xi,yj)ΔAV \approx \sum_{i=1}^n \sum_{j=1}^n f(x_i^*, y_j^*) \Delta A
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