🔢 Entering Mathematical Formulas
Table of Contents
Introduction
To use the MathKiwi app, the user enters mathematical expressions in a special text field:
MathKiwi supports a wide range of notation—from simple addition and subtraction to advanced expressions like derivatives and limits.
To make input easier, the app offers two methods:
A built-in math keyboard with symbols and operators used at different levels of mathematics.
Support for keyboard shortcuts, allowing you to quickly and easily enter formulas using a regular computer keyboard.
Both methods can be used interchangeably — you can start typing with your keyboard and finish using the on-screen keyboard, or the other way around.
This section explains how to use both methods and how to enter the most commonly used symbols and operators.
🧮 I. Built-in Math Keyboard
I.1. How to open the keyboard?
- Click the math keyboard icon located below the input field.
- Click the math keyboard icon located inside the input field.
I.2. How to hide the keyboard?
- Click the keyboard icon again.
- Alternatively, click outside the keyboard area — the keyboard will hide automatically.
I.3. What does the keyboard contain?
The keyboard is divided into thematic sections:
- Basic symbols: +, −, ×, ÷, parentheses
- Fractions and powers: ½, a^b
- Roots: √a
- Analytic operators: lim, ' (derivatives)
- Mathematical symbols and constants: π, e, i, ∞
- Mathematical functions: sin, cos, log, ln, tan
⌨️ II. Typing with a computer keyboard
You can also type directly using the keyboard, with special keyboard shortcuts that are automatically converted into mathematical expressions.
II.1. List of keyboard shortcuts (examples):
| What you want to type | Keyboard shortcut | Result in the app |
|---|---|---|
| Exponent | ^ | x^2 → 𝑥² |
| Fraction | / | 1/2 → ½ |
| Square root | \sqrt(...) | \sqrt(2) → √2 |
| Limit | \lim_{x->a} | limₓ→ₐ |
| Infinity | oo | ∞ |
| Pi | \pi | π |
Note: Some shortcuts may require parentheses. E.g. \
sqrt(4).
💡 Tips
- The on-screen keyboard and shortcuts work in parallel — you can start typing the formula manually and then complete it by clicking symbols on the keyboard.
