Calculator notation for symbolic questions includes a number of operators and functions.
Note
- Angles for trigonometric functions are expressed in radians.
- Answers are case-sensitive; x and X are not the same.
- Do not type commas in numbers; 5,280 is not correct.
| Notation | Keyboard | Example | Notes |
|---|---|---|---|
| Addition | + | x + 1 | |
| Subtraction | - | x - 1
-x |
|
| Multiplication | * | 4*x
4x |
Implicit multiplication is allowed. |
| Division | / | x/4 | |
| Exponents | ^
* |
x**3 or x^3 | |
| Parentheses | ( ) | 4/(x + 1)
3(x + 1) |
|
| Equal | = | y = 10 | |
| Greater than | > | y > 10 | |
| Less than | < | y < 10 | |
| Greater than or equal to | >= | y >= 10 | |
| Less than or equal to | <= | y <= 10 | |
| Absolute value | abs() | abs(-5) = 5 | |
| Square root | sqrt() | sqrt(x/5) | |
| nth root | rootn() | root5(x - 3) | |
| Factorial | ! | 5! = 120
(x - 1)! |
|
| Trigonometric functions |
sin() cos() tan() sec() csc() cot() |
sin(2x) atan(pi/4) cosh(y) |
Angles are expressed in radians.
Inverse and hyperbolic functions are also supported with notation like atan() and coth(). |
| Greek letters (π, α, θ, ∆) |
pi alpha theta Delta |
2 pi x sin( alpha ) 2 theta Delta t |
3.14 is only an approximation of π and is not equivalent for grading. Type the name of a Greek letter in lowercase to enter the lowercase letter, or capitalize it to enter the capital letter. |
| Scientific notation | e | 1e3 = 1000 | When entering scientific notation, always use a lowercase e and an integer exponent, for example, 1.23e-5. |
| Natural log | ln() | ln(x) | |
| Euler's number | exp() | exp(x) | Raises Euler's number to the specified power. For example, exp(2) = . |
| General log | log_b() | log_2(x + 5) | The specified base must be a natural number. |
| Positive and negative infinity |
infinity -infinity |
(-infinity, 2] |
|
| Degrees | deg | 30 deg | |
| Radians | rad | pi/6 rad | |
| Subscripts | _ | x_2 |