Double-Exponential Quadrature Calculator

Let $f(x)$ be a function of real numbers in the interval $(a,b)$, where $a$ and/or $b$ can be singular points (the points where $f(x)$ or $f'(x)$ do not exist or are not finite), this application use double-exponential quadrature method to calculate the numerical integration $I$: \[ I = \int_a^b f(x)\;\mathrm{d}x \]

For example, $f(x)=\sqrt{1-x^2}$, $a=0$, and $b=1$ which is the singular point. But the quadrature can be calculated with this application.

Input Data

This calculator requires the same input as used in Gauss-Kronrod Quadrature Calculator.

Double-Exponential Quadrature Calculator