Logarithm
log_base(x), plus the natural log and the common log.
Open a calculatorQuadratic
Discriminant Δ = b² − 4ac. Two real roots when Δ > 0, one when Δ = 0, none when Δ < 0. If a is zero and b is not, it is the line x = −c/b. Complex roots are not printed.
x₁
3
x₂
2
Discriminant
1
x₁: 3
x² − 5x + 6 factors as (x − 2)(x − 3). Rounding can split a repeated root into two close ones.
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An educational estimate. Not medical, tax or credit advice.