TTCalc

TTCalc is a mathematical bignum calculator that features lots of functions – functions for converting between degrees and radians, trig and inverse trigonometric functions, arithmetical functions, hyperbolic and inverse hyperbolic functions, and custom functions (these are functions that you can define yourself). You can use the application to perform a large variety of calculations, from simple to quite complex ones.

Get the 814KB Windows installer, run it, click through the simple instructions presented by a setup wizard, and moments later you will have TTCalc up and running on your PC. It must be mentioned here that TTCalc is also available as a portable edition. It must also be mentioned that TTCalc is open source; you can download the source code if you want to.

There are two View modes for the interface: Normal View (which is used by default) and Compact View (you can switch to it from the View Menu located in the upper left hand corner). Seeing that multiple languages are supported, you can use the interface in English or in some other language, like Italian for example. Overall, the interface is easy to figure out, easy to navigate, and easy to use.

With TTCalc you can perform various calculations, from simple to complex ones. You can also define variables and functions for your calculations. Said calculations are performed by using binary floating point numbers with three kinds of precision. Use TTCalc on your PC for free for as long as you want.

There’s much to like about TTCalc: it is open source, it has a user friendly interface, it gives you all the tools you need to perform complex calculations. If you are looking for a properly good mathematical bignum calculator, this is it!