Tension Software (http://www.pomola.com) has updated TS Calc, a Mac OS X application offering a platform to solve mathematical models applied to technical problems of various type, to version 1.2. The upgrade is ready for Mac OS X 10.7 (“Lion”) and fixes some bugs.

TS Calc is a document based application and its documents can be realized and used as calculation models for a specific mathematical technical problems. These documents can also be distributed as pre-made solutions for various type of technical problems with all the requested equations inside and all the variables pre-inserted with acceptable range already set.

A TS Calc document contains a series of equations and a list of variables and constants used by the equations. The user can insert different input and see the output generated by the TS Calc document using the equations solving the problem.

TS Calc includes a calculation engine entirely developed and coded internally by Tension Software in C and Objective-C. It’s able to solve equations with any nested level of parenthesis, variables and a large type of mathematical functions.

TS Calc requires Mac OS X 10.6 or higher. It costs US$15, though version 1.2 is a free update for registered users.