We propose a new method for choosing weights and quadrature nodes for the numerical integration of matrix elements over vibrational eigenfunctios. Our method is tested against existing quadrature schemes for two systems (I2 and HF) and is found to be computationally superior.
Bibliographical noteFunding Information:
We are grateful to J.M. Hutson for a preprint of ref. \[16\]T. his work was supported in part by the National Science Foundation through grant nos. CHE8O-25232 and CHE83-17944.