Tension Software has updated TS Calc
(http://www.pomola.com/products_tscalc/tscalc.html), a Mac OS X app
for solving mathematical models applied to technical problems of
various types, to version 1.1.1. The new version sports improved
preferences, some bug fixes and a new PDF user guide.

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, able to solve
equations with any nested level of parenthesis, variables and a large
type of mathematical functions.

TS Calc is Universal Binary so runs natively on both PowerPC and
Intel Macs. It requires Mac OS X 10.5 or higher. TS Calc costs US$30,
though version 1.1.1 is a free update for registered users.