Evaluates the net present value of an investment based on a series of periodic.

Evaluates the next coupon date after the settlement date.

Evaluates the nominal annual interest rate.

Solves a nonlinear least-squares problem using a modified Levenberg-Marquardt algorithm.

Computes the non-negative least squares (nnls) solution.

Given an m × n real matrix A ≥ 0 and an integer k ≤ min (m, n), compute a factorization A ≅ FG.

Evaluates the standard normal (Gaussian) distribution function.

Evaluates the inverse of the standard normal (Gaussian) distribution function.

Evaluates the number of periods for an investment based on periodic and constant payment and a constant interest rate.