Oct 01, 2026 A Cosine Integral: Recurrence, Wallis, and Euler Sep 09, 2026 Evaluating a Sine Integral with Two, One, or No Parameter Derivatives Jul 26, 2026 Solving Fresnel Integrals by Schwinger Parameterization and Complex Analysis Jul 19, 2026 A Feynman-Parameter and Residue-Theorem Evaluation of an Arctangent Integral Mar 21, 2026 A Residue-Theorem Evaluation of \(\int_0^1 \frac{\ln x}{x^2-x-1}\,\mathrm{d}x\)