Logarithme Népérien

How to use it

1. Value x = 7.389
2. Natural log is base e ≈ 2.71828
3. Calculate ln(7.389) ≈ 2.0000
4. Verification: e² ≈ 7.389

Common mistakes

• ⚠️ Trying to calculete ln of negative number or zero
• ⚠️ Confusing ln with log₁₀
• ⚠️ Not recognizing that ln(e) = 1

Worked example

Find the natural logarithm of 7.389.

The natural logarithm {ln} is the power to which e must be raised to get x.

Input guide