2 + 3 × 4
- Details
- 2+3×4
- Result
- 14
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History
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How it is calculated
- Order of operations: brackets, then factorial, per cent and square, then powers (from right to left, so -2^2 = -4), then signs, then multiplication and division, then addition and subtraction.
- The multiplication sign may be left out between a number and a bracket or function, as in 2π, 3(4 + 1) and 2sin(30). Missing closing brackets at the end are added automatically.
- Calculations use double-precision numbers and results are shown to 12 significant digits, so 0.1 + 0.2 is shown as 0.3. Very large or small results use scientific notation, such as 1.5E15.
- In degrees, special angles such as 30°, 45° and 90° give exact values. tan 90° is not defined.
- All calculations are done in your browser. The details you enter are not sent to any server.
Keys
| Key | Typed as | Meaning |
|---|---|---|
| sin cos tan | sin( cos( tan( | Trigonometric functions in the selected angle unit |
| sin⁻¹ cos⁻¹ tan⁻¹ | asin( acos( atan( | Inverse functions; the result is in the selected angle unit |
| ln | ln( | Natural logarithm (base e) |
| log | log( | Common logarithm (base 10) |
| x² xʸ | ^2 ^ | Square and power, for example 2^10 = 1024 |
| √ | sqrt( | Square root |
| x! | ! | Factorial of a whole number from 0 to 170 |
| % | % | Divides by 100, for example 50% × 200 = 100 |
| ×10ⁿ | E | Scientific notation, for example 1.5E3 = 1500 |
| π e | pi e | Pi and Euler's number |
| Ans | ans | The previous answer |
Worked examples
(2 + 3) × 4
- Details
- (2+3)×4
- Result
- 20
-2^2
- Details
- -2^2
- Result
- -4
2^10
- Details
- 2^10
- Result
- 1024
√16 + 3!
- Details
- √(16)+3!
- Result
- 10
sin 30°
- Details
- sin(30) (DEG)
- Result
- 0.5
cos 60° + tan 45°
- Details
- cos(60)+tan(45) (DEG)
- Result
- 1.5
sin(π ÷ 6), rad
- Details
- sin(π÷6) (RAD)
- Result
- 0.5
asin 1
- Details
- asin(1) (DEG)
- Result
- 90
log 1000
- Details
- log(1000)
- Result
- 3
ln e²
- Details
- ln(e^2)
- Result
- 2
2π
- Details
- 2π
- Result
- 6.28318530718
50% × 200
- Details
- 50%×200
- Result
- 100
0.1 + 0.2
- Details
- 0.1+0.2
- Result
- 0.3
1 ÷ 3 × 3
- Details
- 1÷3×3
- Result
- 1
1.5E3 ÷ 3
- Details
- 1.5E3÷3
- Result
- 500
2^60
- Details
- 2^60
- Result
- 1.15292150461E18
1 ÷ 0
- Details
- 1÷0
- Result
- The divisor must not be 0.
√(−1)
- Details
- √(-1)
- Result
- The value is outside the domain, for example the square root of a negative number, the log of 0 or tan 90°.
tan 90°
- Details
- tan(90) (DEG)
- Result
- The value is outside the domain, for example the square root of a negative number, the log of 0 or tan 90°.
2 +
- Details
- 2+
- Result
- The expression is incomplete or has a symbol that cannot be read.