TTCalc Portable is a nice advanced Mathematical calculator. Available in both English and Polish languages TTCalc is so simple to navigate and very easy to use. It contains hyperbolic and trigonometric functions amongst many more. The portable calculator can do conversions as well.
Best of all it is tiny and can easily fit on the smallest of USB flash pen drives.
TTCalc Hyperbolic and Trigonometric Calculator

TTCalc is a high-precision scientific calculator that's available in a portable version, meaning it can be run without installation from a USB drive or other portable storage. This is convenient for users who need to perform complex mathematical calculations on different computers without needing to install software. Here are some of its features:
- High precision (1000 digits of mantissa)
- Trigonometric functions
- Logarithmic functions
- Exponential functions
- Complex numbers
- Customizable interface
- Scriptable functions
- Portable stand alone version runs on Windows without installation
TTCalc Portable Specs and where to Download
- Website: Project Page
- Author: written by Tomasz Sowa
- License: Open Source
- Supported OS: Windows
- Downloading: You can find the stand alone version here:
TTCalc Download
When to Use TTCalc
TTCalc is aimed at scientific and high-precision calculations rather than basic arithmetic alone. Its listed functions include trigonometric and logarithmic operations, exponentials, and complex-number calculations. If you need a calculator on more than one PC, test the portable build with representative calculations before depending on it for important work.
The direct download listed here is an older 0.9.3 package. Check the TTCalc project page for project information and compatibility details, and do not assume an old binary supports every current version of Windows. Keep a copy of important formulas or results outside the application as well.
For a broader collection of utilities that can be carried on removable storage, browse general-purpose flash drive apps and compare each tool's current requirements before downloading.