CalcHub

Scientific Calculator

Trigonometry, logarithms, powers, factorials.

Standard operator precedence with DEG/RAD trig modes, powers, factorials and logarithms. Keyboard: 0–9, operators, Enter, Backspace, Esc.

DEG or RAD?

DEG measures angles in degrees, so sin(30) = 0.5. RAD uses radians, so sin(π/6) = 0.5. Switch with the DEG/RAD key.

Why does the screen say Error?

The expression is invalid — for example division by zero, the square root of a negative number, or a factorial of a non-integer. Press AC to start over.

What is ANS?

ANS recalls the last result. For example, after computing 2+3, pressing ANS × 4 gives 20.

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