Calculator – Free Smart Calculator with History

✓ Calculadora científica en línea gratis

Expression calculator with paper tape. Optional notes/labels, tax calculation, hover delete. Export tape as TXT. localStorage.

• 🔢 Expression Input — Type expressions like 100 + 50 * 2. Full operator precedence respected.
• 📜 Paper Tape History — Every calculation is recorded on a virtual paper tape. See your full calculation history.
• 🏷️ Notes & Labels — Add optional notes or labels to each calculation entry on the tape.
• 💵 Tax Calculation — Calculate with or without tax. Common tax rate presets available.

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