A quick reference for every function on the keypad, including a couple of things that aren't obvious at a glance — like fractional roots.
Type numbers and operators just like you'd write the expression on paper. Parentheses don't need to be closed manually — = auto-closes anything left open. Implicit multiplication works too, so 2(3+4) and 2π both work without a × in between.
sin, cos, tan and their inverses (sin⁻¹, cos⁻¹, tan⁻¹) use whichever angle mode is active — DEG or RAD, shown top-right. Tap the mode indicator to switch.
| Key | Does |
|---|---|
| ln | natural log |
| log | log base 10 |
| eˣ | e raised to a power |
| 10ˣ | 10 raised to a power |
x², x³, and 1/x apply directly to whatever you've already typed — type 9, press x², get 81.
√ and ∛ work the same way: type the number first, then press the key.
9 → press √For any other root — including a root with a fractional index — use ⁿ√. Type the index first, press ⁿ√, then type the number you're rooting.
5 → press ⁿ√ → type 32 → press =The index doesn't have to be a whole number. Type a fraction like 3/5 before pressing ⁿ√ and it's used as the root index directly — no extra steps needed:
3/5 → press ⁿ√ → type 8 → press =xʸ works the other direction — type the base, press xʸ, then type any exponent, including a fraction or a decimal.
1EE-5 for 1×10⁻⁵nPr(5,2)3calc works with your physical keyboard too — numbers, + - * / ^ % !, parentheses, Enter for equals, Backspace to delete, and Esc to clear.