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Add another useful link for beginners (#22183)

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* Add another useful link for beginners 

https://mathinsight.org/logarithm_basics - For those starting out

* Reordered section on sources
This commit is contained in:
ahs-atan
2018-11-19 21:34:01 +00:00
committed by Manish Giri
parent a812f79709
commit 36886e6318
1 changed files with 5 additions and 8 deletions
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13
guide/english/mathematics/intro-to-logarithms/index.md
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@ -21,13 +21,6 @@ math.log(100, 10) #outputs 2
math.log(2, 2) #outputs 1
```
#### Sources:
<!-- Please add any articles you think might be helpful to read before writing the article -->
* https://betterexplained.com/articles/using-logs-in-the-real-world/
* https://www.khanacademy.org/math/algebra2/exponential-and-logarithmic-functions/introduction-to-logarithms/a/intro-to-logarithms
### Definition of logarithm
The logarithm of a number __x__, written _log(__x__)_, usually means the number you have to use as power over 10 to get __x__. Let's say you wanna find _log(10)_. This means you wanna find the number you have to raise 10 to to get 10. This gives us an equation:
@ -50,4 +43,8 @@ _ln(e) = 1_, instead of _log(10) = 1_.
So, we are instead finding the power you need to raise _e_ to in _ln(__x__)_.
#### More Information
<!-- Please add any articles you think might be helpful to read before writing the article -->
* https://betterexplained.com/articles/using-logs-in-the-real-world/
* https://www.khanacademy.org/math/algebra2/exponential-and-logarithmic-functions/introduction-to-logarithms/a/intro-to-logarithms
* https://mathinsight.org/logarithm_basics