Scientific calculator
Trig, logs, powers, factorial and more. Toggle degrees/radians.
Type or use the keypad. Supported: sin, cos, tan, asin, acos, atan, ln, log, sqrt, ^, !, π, e, ( )
How to use the Scientific Calculator
Type an expression or tap the keys, then press = or Calculate. Switch angle mode with the DEG/RAD button.
Quick steps
- Enter your sum in the Expression box (e.g.
sin(30)+5^2). - Pick angle mode: tap DEG for degrees or RAD for radians.
- Use the keypad for sin, cos, tan, ln, log, √, x², !, π, e, and the math signs.
- Press = or Calculate to see the result in the box below.
- Use ⌫ to delete one character, or C to clear all.
Angle mode (DEG vs RAD)
- DEG (degrees):
sin(30)→0.5 - RAD (radians):
sin(π/6)→0.5 - Tap the DEG/RAD button to switch before you calculate.
Supported keys & syntax
| Feature | How to write | Example |
|---|---|---|
| Add / Subtract | +, - | 8+2-3 |
| Multiply / Divide | * or ×, / or ÷ | 6*7, 10/4 |
| Powers | ^, x² | 5^3 → 125, (3+1)^2 |
| Square root | sqrt(x) or √ | sqrt(81) → 9 |
| Factorial | n! | 5! → 120 |
| Trig | sin(x), cos(x), tan(x) | cos(60) in DEG → 0.5 |
| Inverse trig | asin(x), acos(x), atan(x) | asin(0.5) |
| Logs | ln(x) (base e), log(x) (base 10) | ln(e^2) → 2, log(100) → 2 |
| Constants | π/pi, e | 2*pi, e^1 |
| Percent | % (÷100) | 200*15% → 30 |
| Grouping | ( ... ) | (2+3)*(4-1) |
| Commas | , inside functions (where used) | For multi-arg funcs if added later |
Order of operations
The calculator follows standard math rules: brackets → functions → factorial & powers → × ÷ → + −. When in doubt, add ( ).
Handy examples
sin(30)+5^2(DEG) →25.5sqrt(9)+3!→3+6 = 9sin(pi/6)(RAD) →0.5(1+0.05)^12 - 1→ yearly growth from 5% monthly (toy)log(2,10)(if multi-arg logs are added later) → log base 10 of 2
Tips
- Use your keyboard:
*for ×,/for ÷,^for power. - Switch DEG/RAD before running trig to avoid wrong answers.
- If you get an error, check spelling (
sqrt,ln,log), brackets, and decimal dots.