This online calculator substitutes a specific value for each variable, and performs the operations, evaluating the given expression.
|Function approximation with regression analysis|
This online calculator uses several regression models for approximation of an unknown function given by a set of data points.
|Mean, variance and standard deviation of discrete random variable|
This online calculator calculates the mean, variance, and standard deviation of random variables entered in the form of a value-probability table.
|Curve fitting using unconstrained and constrained linear least squares methods|
This online calculator builds a regression model to fit a curve using the linear least squares method. If additional constraints on the approximating function are entered, the calculator uses Lagrange multipliers to find the solutions.