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Calculate natural logarithm

Compute ln(x), the natural logarithm with base e.

Also known as: calculate natural logarithm calculator, ln calculator, calculate natural logarithm, powers & logs math, powers & logs calculate natural logarithm

Inputs

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ln(x)

2.995732

e^2.995732 ≈ 20.0000

log₁₀(x)

1.301030

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What this result means

Compute ln(x), the natural logarithm with base e. ln(x) is the inverse of e^x; ln(e) = 1.

Assumptions

  • Rule dependency: Universal formula.

How is it calculated?

ln(x) is the inverse of e^x; ln(e) = 1.

Example

ln(20) ≈ 2.995732.

Frequently asked questions

What is e?+

Euler's number ≈ 2.71828.