1)   Regression analysis - CurveFitter 1.1
CurveFitter program performs statistical regression analysis to estimate the values of parameters for linear, multivariate, polynomial, exponential and nonlinear functions.
graphing, data analysis, plotting, curve fitting, nonlinear regression, non-linear regression, non linear regression, data fitting, non linear curve fitting, nonlinear curve fitting,

 2)   Scientific calculator - ScienCalc 1.1
ScienCalc is a convenient and powerful scientific calculator. ScienCalc calculates mathematical expression. It supports the common arithmetic operations (+, -, *, /) and parentheses.
graphing, data analysis, plotting, curve fitting, nonlinear regression, non-linear regression, non linear regression, data fitting, non linear curve fitting, nonlinear curve fitting,