How the Nitrax Math Keyboard Works
Writing a sentence that needs π? With Nitrax Mathematical Keyboard, find π printed on the P key and use its key combination to put the symbol into your text.
This compact physical keyboard has letters and mathematical, Greek and scientific symbols printed directly on its keys. After setup, you can write words and symbols on the same keyboard instead of opening a symbol menu each time.
One key, two printed symbol colors
The blue and gray markings identify two sets of symbols, called layers. The color tells you which key combination to use.
Look at the +/= key:
- Blue ± means plus or minus.
- Gray ≠ means not equal to.
On Windows, hold Left Ctrl and Left Alt, then press that key for ±. Add Shift to the combination for ≠. The symbol stays visible on the key as your reference.
From the printed key to your document
After Windows setup, keep the companion app running with Math Mode on, the setting that enables the printed symbol combinations. Place your text cursor where you want the character.
| Printed symbol | Key combination | Appears in your text |
|---|---|---|
| Blue √ on T | Left Ctrl + Left Alt + T | √ |
| Blue ± on +/= | Left Ctrl + Left Alt + the +/= key | ± |
| Gray π on P | Left Ctrl + Left Alt + Shift + P | π |
| Gray ≤ on comma/< | Left Ctrl + Left Alt + Shift + comma key | ≤ |
Use the left Ctrl and Alt keys for these Windows combinations. macOS uses left Control and left Option, with Shift added for gray symbols.
Keep writing the sentence
Use π for the circle constant.
Release the combination keys and continue ordinary typing. You do not need to turn Math Mode off between words and symbols.
The companion app converts the combinations into text characters. Nitrax Math Keyboard enters symbols; it does not calculate answers or arrange complete equations. Use an equation editor or LaTeX when you need stacked fractions or aligned equations.
Connect the keyboard, then enable the symbols
Connect through Bluetooth or the included 2.4 GHz USB-A receiver. USB-C is for charging.
Windows needs the Nitrax Mathematical Keyboard app from Microsoft Store. macOS 15 or later needs the companion app and Karabiner-Elements. Follow the Windows setup guide or macOS setup guide for your computer.
Symbol display and key-combination support vary by app and font.
Put the symbols where you can see them
Choose Nitrax Math Keyboard for notes, lessons and explanations that mix words with math. Read the symbol from its key, use the combination and keep writing.
Buy nowPublished by the maker of Nitrax Mathematical Keyboard.