Oct 29, 2016 · I know that the sum of powers of $2$ is $2^{n+1}-1$, and I know the mathematical induction proof. But does anyone know how $2^{n+1}-1$ comes up in the first place. For example, …

How do I calculate this sum in terms of 'n'? I know this is a harmonic progression, but I can't find how to calculate the summation of it. Also, is it an expansion of any mathematical function? 1 ...

Apr 3, 2021 · Repeated sum is denoted using $\\sum$ and is called "summation." What is the name for the analogous process with multiplication, denoted $\\prod$?

Explore related questions summation exponential-function See similar questions with these tags.

Feb 25, 2015 · Rules for Product and Summation Notation Ask Question Asked 12 years, 4 months ago Modified 6 years, 5 months ago

Easy way of memorizing or quickly deriving summation formulas Ask Question Asked 10 years, 3 months ago Modified 5 years, 1 month ago

What are the (most important) rules of double sums? Below are some rules I encountered - are they all correct and complete? Offerings of clear intuition or proofs (or other additions) are most welc...

I just looked it up. He describes it precisely for the purpose of contrasting with the factorial function, and the name seems to be a play on words (term-inal rather than factor-ial). I was suspicious that he …

Oct 3, 2017 · I am curious about simplifying the following expression: $$\log \left (\sum_\limits {i=0}^ {n}x_i \right)$$ Is there any rule to simplify a summation inside the log?

Dec 4, 2017 · How to convert a summation into a closed form Ask Question Asked 8 years, 3 months ago Modified 8 years, 3 months ago