QUEST-QUadrupolar Exact SofTware: A fast graphical program for the exact simulation of NMR and NQR spectra for quadrupolar nuclei

► Full diagonalization of the combined Zeeman-quadrupolar Hamiltonian. ► Exact NMR simulations can be performed in seconds on modern computers. ► The program is valid from NQR to high-field NMR. ► All possible transitions are simulated simultaneously. ► Can be used for simulating NMR, NQR, and overtone NMR/NQR spectra.