Mathematics A-Level
The natural logarithm and base e
What The natural logarithm and base e means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of The natural logarithm and base e
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Reference: Pearson Edexcel
ln x is log_e(x), the inverse of e^x, so ln(e^x) = x and e^(ln x) = x for x > 0.
Topics that use The natural logarithm and base e
- Exponentials and logarithms (Pearson Edexcel A-Level)
Related terms
- Continuous change
- Differentiation of exponential functions
- Exponential function
- Exponential modelling
- gradient
- inverse functions
- laws of logarithms
- Line of best fit
Using The natural logarithm and base e in the exam
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