Check Log
Change-of-base converts a logarithm to natural logs or another supported base. The input requires x > 0 and b > 0, b β 1.
Formula: log_b(x) = ln(x) Γ· ln(b)
Keep the input format consistent with the calculation method and avoid rounding values earlier than necessary.
A quick hand calculation based on the formula above is enough to confirm the main arithmetic.