Nitrax Mathematical Keyboard vs ArithmeType

When a sentence needs θ, ≤ or π, reaching for another device can interrupt the explanation. Nitrax Mathematical Keyboard puts letters and mathematical, Greek and scientific symbols on one compact physical keyboard, with symbols printed directly on the keys.

After setup, key combinations type the symbols shown in blue and gray on those keys. ArithmeType offers a different arrangement: a dedicated math keyboard used alongside your existing computer keyboard. Choose Nitrax Math Keyboard when your writing regularly mixes words with notation.

Words and notation in the same sentence

Illustrative note

For θ ≤ π, compare the two cases.
A sentence with Greek letters and a mathematical relation.

Nitrax Math Keyboard

Type the words → use printed symbol key combinations → continue the sentence on the same keyboard.

ArithmeType Math Keyboard

Use your QWERTY keyboard for prose and the companion math keyboard for symbols.

For notes, lesson explanations and technical documents that mix prose with notation, the Nitrax arrangement keeps both kinds of typing together. ArithmeType LLC describes its hardware as a companion to your computer keyboard. It can also enter letters through a secondary alphabet mechanism; the companion arrangement is its usual role, not a limit on letter entry. Manufacturer’s product details.

Mathematical keyboard front view on white background showing math, Greek and scientific symbols

A math-focused layout has its own strengths

Two physical approaches to typing math
What mattersNitrax Math KeyboardArithmeType Math Keyboard
Keyboard arrangementLetters and printed symbols togetherCompanion board with number, operation and symbol sections
Symbol accessKey combinations for blue and gray printed symbolsMany direct symbol keys; a 2nd key for alternate outputs
ConnectionBluetooth or included 2.4 GHz USB-A receiver; USB-C for charging onlyBuilt-in USB-A cord; an adapter is needed if your computer lacks USB-A
Focused accessCompact keyboard for text and notationRemovable section covers; optional keyguards sold separately

ArithmeType’s section covers hide unused areas. Its optional keyguards may matter when choosing equipment for a particular access need. Evaluate the intended user’s requirements rather than treating these keyboards as interchangeable. ArithmeType LLC’s manual and section-cover guidance; manufacturer’s accessories.

ArithmeType’s fraction workflow in Google Docs

ArithmeType also has keys for a specific equation-editing workflow. Its manual describes this sequence in Google Docs, with the File, Edit and other menus visible:

  1. Press Start GD EQ to open the equation editor.
  2. Press a/b to create a fraction.
  3. Type the numerator; press Enter to move to the denominator.

The fraction key depends on the Google Docs equation editor. This can be useful for structured exercises; it is a different task from inserting a symbol into a sentence. ArithmeType LLC’s operating instructions, pages 14–15.

Nitrax Mathematical Keyboard enters symbols. Your writing app controls equation layout, and app support varies.

Check your connection and setup before buying

Nitrax printed symbols need its Windows app and setup with Math Mode enabled, the setting that activates symbol typing. On macOS 15+, follow the Mac setup guide for its companion app and Karabiner-Elements. ArithmeType specifies WinCompose on Windows and Unicode Hex Input setup on Mac. Manufacturer setup guide.

Play video demonstration
Nitrax Mathematical Keyboard wireless connectivity buttons for USB receiver and Bluetooth

Choose a keyboard for the way you explain math

If your everyday writing moves between words, Greek letters and mathematical symbols, choose Nitrax Mathematical Keyboard to keep them together on one compact physical keyboard.

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Published by the maker of Nitrax Mathematical Keyboard.