4. Numerical Integration
Numerical integration is crucial for approximating definite integrals, particularly when analytical methods are infeasible. Techniques like the Trapezoidal Rule and Simpson's Rules offer varying levels of accuracy and applicability, making them vital in fields such as engineering, physics, and finance. These methods facilitate the analysis of complex functions and ensure effective data interpretation.
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What we have learnt
- Numerical integration approximates the value of definite integrals for complex functions.
- The Trapezoidal Rule is straightforward but less accurate compared to Simpson's methods.
- Simpson's 1/3 and 3/8 Rules provide better precision for smoother functions and have specific requirements.
Key Concepts
- -- Numerical Integration
- A method for approximating the value of definite integrals when analytical integration is complex or impossible.
- -- Trapezoidal Rule
- A numerical method that estimates the area under a curve using trapezoids, providing a basic level of accuracy.
- -- Simpson’s 1/3 Rule
- A numerical integration technique that uses parabolic segments, applicable when the number of intervals is even, offering improved accuracy compared to the Trapezoidal Rule.
- -- Simpson’s 3/8 Rule
- An extension of Simpson's method using cubic polynomials, best employed when the number of intervals is a multiple of three.
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