Is nlogn the Same as n Multiplied by logn?

  • Thread starter Thread starter pjhphysics
  • Start date Start date
  • Tags Tags
    Log
AI Thread Summary
nlogn, specifically nlog[base2]n, is indeed the same as n multiplied by logn, commonly expressed in programming as n * log(n). The discussion highlights that in Big Oh notation, the base of the logarithm is irrelevant since logarithms of different bases are proportional. This means that O(log_a(x)) is equivalent to O(log_b(x)) for any x. The focus on Big Oh notation emphasizes that it disregards scalar differences between functions. Understanding these properties is crucial for analyzing algorithmic complexity.
pjhphysics
Messages
16
Reaction score
0
Hey,

Is nlogn (or more specifically nlog[base2]n) the same as: n multiplied by logn?

Thanks
 
Mathematics news on Phys.org
Yes. In a programming, it would be written something like n * log(n).

I am guessing you're talking about Big Oh notation. An interesting thing about Big Oh is that it doesn't matter what base log you're referring to. Given two bases, log_a(x) and log_b(x) will always be proportional to each other for all x. Big Oh notation ignores scalar differences between functions, so O(log_a(x)) = O(log_b(x)).
 
Thread 'Video on imaginary numbers and some queries'
Hi, I was watching the following video. I found some points confusing. Could you please help me to understand the gaps? Thanks, in advance! Question 1: Around 4:22, the video says the following. So for those mathematicians, negative numbers didn't exist. You could subtract, that is find the difference between two positive quantities, but you couldn't have a negative answer or negative coefficients. Mathematicians were so averse to negative numbers that there was no single quadratic...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
Thread 'Unit Circle Double Angle Derivations'
Here I made a terrible mistake of assuming this to be an equilateral triangle and set 2sinx=1 => x=pi/6. Although this did derive the double angle formulas it also led into a terrible mess trying to find all the combinations of sides. I must have been tired and just assumed 6x=180 and 2sinx=1. By that time, I was so mindset that I nearly scolded a person for even saying 90-x. I wonder if this is a case of biased observation that seeks to dis credit me like Jesus of Nazareth since in reality...

Similar threads

Back
Top