I see that apache commons has Estimators (aka Solvers, yes?): EstimatedParameter GaussNewtonEstimator LevenbergMarquardtEstimator SimpleEstimationProblem WeightedMeasurement
Our mathematician has specified features we will need: 1. Assume non-negative parameters, 2. forward and central derivatives, 3. tangent estimates 4. quadratic estimates, 5. Newton and conjugate search direction Does apache commons have these capabilities?
