Scientific Calculator
Sine, cosine, powers, roots, logs and more.
History
No calculations yet. Anything you work out will appear here.
More options
How to use the scientific calculator
- Type a sum
Use the number pad for everyday sums, and the top pad for scientific work: sin, cos, tan, powers, roots, logs and more.
- Pick Deg or Rad, and 2nd or Hyp, if you need them
"Deg/Rad" changes how angles are measured. "2nd" swaps a button for its opposite (like x² becoming √), and "Hyp" switches sin/cos/tan to their hyperbolic versions.
- Press "="
Press "=" (or Enter) to get your answer. Copy it with the "Copy" button, or tap any past sum in "History" to bring its answer back.
Questions
How do I do a square root?
Type the number, then tap "2nd" and then "x²" — under 2nd, that key becomes "√". You can also just wrap a sum in the square-root symbol by pressing 2nd first, then typing the number.
How do I switch between degrees and radians?
Use the "Deg" and "Rad" buttons above the sin/cos/tan keys. "Deg" (degrees) is the everyday 0–360 scale used in most schoolwork. "Rad" (radians) is the scale used in more advanced maths and physics, where a full circle is about 6.283. If you're not sure which you need, it's almost always Deg.
What do 2nd and Hyp do?
"2nd" turns some buttons into their opposite: x² becomes √, x³ becomes ∛, eˣ becomes ln, and so on — the small label on the key changes to show you. "Hyp" switches sin, cos and tan to their hyperbolic versions (sinh, cosh, tanh). You can turn both on together.
How do I use pi (π) or e in a sum?
Tap the π or e button to drop that constant straight into your sum, then carry on typing — for example π × 2 gives you the sum for one full circle in radians.
How do I work out a factorial, like 5!?
Type the number, then tap "n!". 5! (said "5 factorial") means 5 × 4 × 3 × 2 × 1, which comes to 120.
What's the difference between log and ln?
Both are logarithms, just on different scales. "log" is base 10 (how many times you'd multiply 10 by itself to reach your number). "ln" is the natural logarithm, base e. Tap "2nd" to switch 10ˣ/eˣ into log/ln.
Will my history and memory still be there next time?
Yes. Your calculation history and the memory value (M) are kept on this device, so they're waiting for you next time you open the calculator. Use "Clear" in the History panel if you'd rather start fresh.