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Scientific Calculator

Trigonometry, logarithms, powers, roots, factorials and constants in degrees or radians.

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How to use the scientific calculator

  1. Choose DEG or RAD for trigonometric functions.
  2. Use function keys like sin, log or √ — they open a bracket for you.
  3. Use ^ for powers (2^10), ! for factorial and π or e for constants.

Frequently asked questions

What is the difference between log and ln?

log is base-10 logarithm; ln is the natural logarithm (base e ≈ 2.71828).

Why does tan(90) show an error?

tan(90°) is mathematically undefined because cos(90°) is zero.