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Scientific Calculator Online Free

Full scientific calculator with sin, cos, tan, log, ln, sqrt, power, pi and e. Keyboard input supported.

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How to Use the Scientific Calculator

  1. Use the number buttons and operators to build your expression.
  2. Use sin, cos, tan, log, ln, sqrt for advanced functions.
  3. Press = or Enter to evaluate. Use AC to clear.
  4. Toggle DEG/RAD mode for trigonometric functions.

Frequently Asked Questions

Press the sin/cos/tan button, enter the angle value, then press =. Ensure you are in the correct mode β€” DEG for degrees, RAD for radians.

log is the base-10 logarithm. ln is the natural logarithm (base e β‰ˆ 2.718). Both are widely used in mathematics and science.

Use the x^y button β€” enter the base (2), press x^y, enter the exponent (10), then press =.
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