- #1
db453r
- 3
- 0
[itex]\sum_{i=1}^{n}[i/2^i][/itex]
Have looked and looked and cannot find it anywhere.
EDITED: To correct mistake.
Have looked and looked and cannot find it anywhere.
EDITED: To correct mistake.
Last edited:
That one's easy. There's nothing inside the sum that depends on i, so your sum is the same as ##\frac n {2^n}\sum_{i=1}^n 1##.db453r said:[itex]\sum_{i=1}^{n}[n/2^n][/itex]
Have you tried Wolfram alpha, www.wolframalpha.com ?Have looked and looked and cannot find it anywhere.
A formula for a sum is a mathematical expression or equation that can be used to calculate the total value of a set of numbers being added together.
To find the formula for a sum, you can use various methods such as using known mathematical patterns, applying algebraic equations, or using mathematical software or algorithms.
No, there is no one universal formula for all types of sums. Different types of sums, such as arithmetic, geometric, or infinite sums, may require different formulas or methods to calculate their values.
Yes, you can create your own formula for a specific sum by understanding the underlying mathematical concept and applying mathematical principles to derive an equation that accurately represents the sum.
A formula for a sum is important because it allows for quick and accurate calculation of the sum's value, without having to manually add up all the numbers. It also helps in understanding the patterns and relationships within the numbers being added together.