Question 1

What can a basic calculator actually do?

Accepted Answer

The four core arithmetic operations — addition, subtraction, multiplication, and division — plus a sign toggle and a running history so you can glance back at your last several results. It's deliberately not a scientific calculator; there's no trig, logs, or exponents here, just fast everyday arithmetic.

Question 2

Why does the display show an expression above the number sometimes?

Accepted Answer

That's your pending calculation — after you press an operator like +, the first number and operator are held above the display while you type the second number, so you can always see what operation is about to run before you hit equals.

Question 3

What happens if I try to divide by zero?

Accepted Answer

Division by zero is mathematically undefined, so the calculator shows a clear error instead of a nonsensical result and resets so you can start your next calculation cleanly.

Question 4

Does it support decimals and negative numbers?

Accepted Answer

Yes — the decimal point key adds a decimal to the number you're currently typing (only one per number), and the ± key flips the sign of whatever's currently on screen, before or after you've started an operation.

Question 5

I need trigonometry or exponents — where's that?

Accepted Answer

That's the Scientific Calculator, which adds trig functions, logarithms, powers, and more on top of everything here. This Basic Calculator stays intentionally simple for the moments you just need quick arithmetic without extra buttons in the way.

Basic Calculator — Simple, Fast Arithmetic

Basic Calculator

🕘 Recent Calculations

The Four Operations

➕ Addition & ➖ Subtraction

✖️ Multiplication & ➗ Division

Frequently Asked Questions

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