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quad.quadFixedFns.quad_fixed
Evaluate the integral of f(x) over [a, b] using a fixed Gauss-Kronrod rule.
Syntax
quad.quadFixedFns.quad_fixed(f, a, b, rule)
Description
Evaluate the integral of f(x) over [a, b] using a fixed Gauss-Kronrod rule. This function applies a single Gauss-Kronrod quadrature rule without any adaptive subdivision. It's useful for: - Building custom integration strategies - Quick estimates when you know the function is smooth - Performance-critical code where overhead must be minimized Available rules: - 15-point: 7 Gauss + 8 Kronrod points (fastest) - 21-point: 10 Gauss + 11 Kronrod points - 31-point: 15 Gauss + 16 Kronrod points - 41-point: 20 Gauss + 21 Kronrod points - 51-point: 25 Gauss + 26 Kronrod points - 61-point: 30 Gauss + 31 Kronrod points (most accurate)
Parameters
| Name | Description |
|---|---|
| f | - The integrand function f(x) |
| a | - Lower limit of integration |
| b | - Upper limit of integration |
| rule | - Gauss-Kronrod rule order (15, 21, 31, 41, 51, or 61) |
Returns
Promise<QuadFixedResult>