LN Google Sheet Formula
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LN Formula Syntax
Example Use Case
Calculating the natural logarithm for growth or decay analysis
Understanding the LN Formula
The LN function in Excel computes the natural logarithm of a number, using base e (≈2.71828). It’s the inverse of EXP, essential for analyzing exponential processes like compound interest, population growth, or radioactive decay.
LN(2.71828) returns 1, since e^1 = e. It requires positive inputs, reflecting its mathematical roots, and delivers precise results for modeling continuous change—think finance or science applications.
Why Use LN?
LN unpacks exponential relationships, revealing rates or time constants in natural phenomena. It’s a staple in statistical modeling, engineering, or economics, offering a direct way to reverse-engineer e-based growth without complex math.
Example with Sample Data
| Number | Formula | Result |
|---|---|---|
| 2.71828 | =LN(2.71828) | 1 |
| 1 | =LN(1) | 0 |
| 7.38906 | =LN(7.38906) | 2 |
LN reverses exponentials: e gives 1, e^2 (7.389) gives 2. It’s a natural log lifeline.
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