Runge-Kutta adaptive-step solvers for nonlinear PDEs. Solvers include both exponential time differencing and integrating factor methods.

Numerical Solver to Korteweg-de Vries and Kawahara Equations

KDVAT is an advanced VAT calculation application that runs on Linux, macOS, and Windows. With its user-friendly interface, you can easily calculate VAT-inclusive or VAT-exclusive amounts, process bulk calculations, and export results to Excel. Additionally, you can view transaction history and generate detailed statistical reports.