Basic Calculator
General Calculator
A simple calculator for your basic arithmetic needs.
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How It Works
This is a standard digital calculator for performing basic arithmetic operations. It functions just like a handheld calculator you might have on your desk.
Functions
- AC: All Clear. Resets the entire calculation.
- +/-: Toggles the sign of the current number between positive and negative.
- %: Converts the current number into its percentage equivalent (divides by 100).
- ÷, ×, -, +: Standard arithmetic operators.
- =: Executes the pending calculation.
Logic & Formulas
The calculator maintains the current display value, a pending operator (+, -, *, /), and the first operand of a calculation.
- When you press an operator, the current display value is stored as the first operand, and the calculator waits for the second operand.
- If you chain operations (e.g., 5 * 2 + 3), the intermediate calculation (5 * 2) is performed first, its result becomes the new first operand, and the calculator waits for the next number.
- The equals (=) button completes the pending calculation using the stored first operand, the current display value as the second operand, and the stored operator.
- The percentage (%) button simply divides the current display value by 100.
- The toggle sign (+/-) button multiplies the current display value by -1.