olemus
log_ay, st reaalarvu y >0 logaritm alusel a on
reaalarv x , mille puhul a^x = y

Wiktionary:
(mathematics) For a number x, the power to which
a given base number must be raised in order to obtain x
Written log_bx

näide
arvu 8 logaritm alusel 2 on 3, sest 2³ = 2 × 2 × 2 = 8

ülevaateid
https://encyclopediaofmath.org/wiki/Logarithm_of_a_number

https://encyclopediaofmath.org/wiki/Logarithmic_function

https://mathworld.wolfram.com/Logarithm.html

https://en.wikipedia.org/wiki/Logarithm
https://en.wikipedia.org/wiki/History_of_logarithms
https://en.wikipedia.org/wiki/Common_logarithm
https://en.wikipedia.org/wiki/List_of_logarithmic_identities

vt ka
- diskreetlogaritm