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MTR Software
MTR Software has been providing the scientific, engineering and education communities with fitting solutions™ since 1984.

Our premier product, FitAll™, is a nonlinear (& linear) regression analysis (curve fitting) tool that can help you to extract meaningful results from your data.

The conventional wisdom has been that you must transform the model (equation) that describes your system so that it can be fit using linear regression analysis. With FitAll™ this is not necessary -- you can fit your data to the model that actually describes it.

In addition to creating and selling FitAll™, MTR Software provides value added consulting services that include, but are not limited to, creating custom FitAll Function Libraries.
News
MTR Software is pleased to announce the release of FitAll version 9.

FitAll now:
Takes advantage of some of the new features introduced in MS Windows 8.1 and 10.

The most noticeable change is that FitAll now will automatically adjust the font and image sizes when it is run on a computer with a high resolution monitor or its main window is moved to a monitor that has a different resolution.
Has new API functions to determine the roots of 2nd  to 10th -order polynomials.
Has more than two dozen new functions in the FitAll Chemistry Functions Library that can be used to determine the concentration, and acid dissociation constants, pKa's, of weak monoprotic, diprotic and triprotic acids as well as mixtures of monoprotic acids when titrated with a strong base. All of the solutions may or may not contain a strong acid, the concentration of which also can be determined.