Closed Form

An equation is said to be a closed-form solution if it solves a given problem in terms of functions and mathematical operations from a given generally-accepted set.

For example, the sum of the first numbers is given by the closed form

A great tool to find closed form is a search tool The On-Line Encyclopedia of Integer Sequences.

 
Related challenge for Closed Form
Go to Top

Maxima Minima

Given a function , we can find maxima, minima value of this function by equating first order derivative to .
. The value of that satisfies this is a local max or min.

In general to find max/min value of function over a range we need to check and all the points , where .

 
Go to Top
  1. Challenge Walkthrough
    Let's walk through this sample challenge and explore the features of the code editor.1 of 6
  2. Review the problem statement
    Each challenge has a problem statement that includes sample inputs and outputs. Some challenges include additional information to help you out.2 of 6
  3. Choose a language
    Select the language you wish to use to solve this challenge.3 of 6
  4. Enter your code
    Code your solution in our custom editor or code in your own environment and upload your solution as a file.4 of 6
  5. Test your code
    You can compile your code and test it for errors and accuracy before submitting.5 of 6
  6. Submit to see results
    When you're ready, submit your solution! Remember, you can go back and refine your code anytime.6 of 6
  1. Check your score