What is significance of eulers number

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Discussion Overview

The discussion revolves around the significance of Euler's number 'e' in mathematics, particularly in relation to exponential functions and their properties. Participants explore the differences between the function e^x and other exponential functions like 2^x, as well as the implications of these differences in calculus and growth models.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants highlight that e^x is unique because the slope of the function at any point is equal to the value of the function itself.
  • Others question why 2^x does not represent 100% growth and seek clarification on the differences between e^x and 2^x.
  • One participant notes that e is the only number where the derivative of ax is ax, while other bases require an additional multiplier in their derivatives.
  • It is mentioned that the natural logarithm ln(x), which is the inverse of e^x, has a simple derivative of 1/x, unlike logarithms of other bases.
  • A reference to a Mathologer video is provided, which discusses the origins of e and its properties in the context of complex numbers.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and agreement regarding the significance of e compared to other exponential functions. Some points are clarified, but no consensus is reached on all aspects of the discussion.

Contextual Notes

Participants do not fully resolve the implications of growth rates associated with different bases of exponentials, nor do they clarify all mathematical steps involved in the derivatives discussed.

rishi kesh
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why is 'e' so important number. e^x is said to be natural language of growth. Why isn't 2^x a 100% growth.Can anyone explain me the difference between both of these and also bit more about number e which known as famous constant.please explain clearly. I will appreciate it.
 
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I'm on my phone, so I won't go into detail. One thing special about e^x compared to other exponentials is the slope of the function is the value of the function. I would like to point you to this Mathologer video.
. "e to the pi i for dummies"
 
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scottdave said:
I'm on my phone, so I won't go into detail. One thing special about e^x compared to other exponentials is the slope of the function is the value of the function. I would like to point you to this Mathologer video.
. "e to the pi i for dummies"

The video ia about 15 minutes, but he discusses where e comes from in the first few minutes.
 
rishi kesh said:
why is 'e' so important number. e^x is said to be natural language of growth. Why isn't 2^x a 100% growth.Can anyone explain me the difference between both of these and also bit more about number e which known as famous constant.please explain clearly. I will appreciate it.
It is the only number, a, where d/dx (ax) = ax. Any other number requires an "e-related" multiplier (like d/dx (2x) = ln(2) ⋅ 2x). So it is the simplest exponential function when it comes to derivatives. Furthermore, the others (like 2x = eln(2)⋅x) are very easy to write in terms of e, so ex is the most basic exponential function.

Likewise, its inverse function, ln(x), has a very simple derivative, 1/x, whereas derivatives of logarithms to any other base require an "e-related" multiplier.

As the link in @scottdave 's post indicates, there are a lot of nice things about ez in the complex plane.
 
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