Quadratic equation
Find the discriminant (Δ) and real roots (x₁, x₂) of a quadratic equation ax² + bx + c = 0.
Open calculatorLogarithm
Uses the change-of-base identity: log_b(x) = ln(x) / ln(b). Argument x must be positive (x > 0), and base b must be positive and not equal to 1.
log_b(x)
3
Natural log ln(x)
6.907755
Common log log₁₀(x)
3
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log₁₀(1,000) = 3 because 10³ = 1,000.
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