Scientific calculator
Type or tap an expression; the answer appears as you go, with the order of operations shown.
Result
- 2(3+4)^2 ÷ 7
- 14
How this was calculated
Order of operations
( ) → functions and x! → ^ → × ÷ mod → + −
2 + 3 × 4 = 14; (2 + 3) × 4 = 20; 2^3^2 = 2^9 = 512; −2^2 = −4
Angles
Degrees: sin 30 = 0.5, sin 90 = 1
Switch with Degrees / Radians above
Shortcuts
2π, 3(4 + 1) and 2sin30 multiply without ×
Enter keeps the result as Ans; Esc clears
In short
Expressions follow the order of operations: brackets, functions and factorials, powers, then × ÷ and + −, so 2 + 3 × 4 = 14 and 2^3^2 = 512. Trigonometry works in degrees or radians: sin 30° = 0.5, and log 1000 = 3, ln e = 1, 5! = 120.
Order of operations
Brackets come first, then functions such as sin or log and factorials, then powers, then multiplication and division, then addition and subtraction. So 2 + 3 × 4 is 14 and (2 + 3) × 4 is 20. Powers group from the right, as in mathematics: 2^3^2 is 2^9 = 512. A minus sign in front applies after the power: −2^2 is −4.
A number next to a bracket, a constant or a function multiplies it, so 2π is 6.2832, 3(4 + 1) is 15 and 2sin30 is 1. A missing closing bracket at the end is added for you.
Degrees, radians and exact answers
Trigonometry uses degrees unless you switch to radians: sin 30 is 0.5 in degrees, and in radians sin(π ÷ 6) is 0.5. Results are rounded to 12 significant digits, which removes floating-point leftovers, so sin 180° shows 0 and 0.1 + 0.2 shows 0.3.
Where there is no real answer the calculator says so rather than printing NaN or Infinity: the square root of a negative number, the log of 0, tan 90°, division by zero or a factorial of a fraction.
Questions people ask
What is the difference between log and ln?
log is the base-10 logarithm (log 1000 = 3) and ln the natural logarithm, base e (ln e = 1).
How do I use the previous answer?
Press = or Enter and the result becomes Ans: type Ans × 2 to double it. The tape keeps the last eight results.
Can I type instead of tapping?
Yes. Type the expression with the keyboard, using * or × and / or ÷, ^ for powers and sqrt for roots.