MTAC 0.1 is available as a free download on our software library. The MTAC installer is commonly called mtac.exe. The following version: 0.1 is the most frequently downloaded one by the program users. This free software is an intellectual property of Brant Gurganus. The program relates to Office Tools.
From the developer:
MTAC is a calculator that does more than a normal calculator. Not only will MTAC do the normal arithmetic operations as well as scientific operations, it will calculate derivatives and integrals symbolically. Is easy to install and use and is very useful for students.
You may want to check out more software, such as Free QuData Calculator, AcadCalc or iUnit, which might be related to MTAC.