Calculate pi to an accuracy of 5 decimal places?

Posted by pgras on Programmers See other posts from Programmers or by pgras
Published on 2012-08-30T09:02:34Z Indexed on 2012/08/30 9:50 UTC
Read the original article Hit count: 219

Filed under:

algorithms

In this message at point 18 I saw following programming question:

Given that Pi can be estimated using the function 4 * (1 – 1/3 + 1/5 – 1/7 + …) with more terms giving greater accuracy, write a function that calculates Pi to an accuracy of 5 decimal places.

So I know how to implement the given function and how to choose how "far" I should calculate, but how can I tell when I've reached the "accuracy of 5 decimal places" ?

Related posts about algorithms

Finding a problem in some task [closed]

as seen on Programmers - Search for 'Programmers'
Recently I competed in nation wide programming contest finals. Not unexpectedly all problems were algorithmic. I lost (40 points out of 600. Winner got ~300). I know why I lost very well - I don't know how to find actual problem in those obfuscated tasks which are life-blood of every competition.… >>> More
Genetic algorithms

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to implement a genetic algorithm that will calculate the minimum of the Rastrigin functon and I'm having some issues. I need to represent the chromosome as a binary string and as the Rastrigin's function takes a list of numbers as a parameter, how can decode the chromosome to a list of… >>> More
understanding evaluation function

as seen on Programmers - Search for 'Programmers'
I am developing a chess program. And have made use of an alpha beta algorithm and a static evaluation function. I have successfully implemented both but I want to improve the evaluation function by automatically tuning the weights assigned to its features. At this point am totally confused about the… >>> More
How to know whether to create a general system or to hack a solution

as seen on Programmers - Search for 'Programmers'
I'm new to coding , learning it since last year actually. One of my worst habits is the following: Often I'm trying to create a solution that is too big , too complex and doesn't achieve what needs to be achieved, when a hacky kludge can make the fit. One last example was the following (see paste… >>> More
How to implement a genetic algorithm with distance, time, and cost

as seen on Programmers - Search for 'Programmers'
I want to make a solution to find the optimum route of school visit. For example, I want to visit 5 schools (A, B, C, D, E) in my city. Then I must find out what school I should visit first, then the second, then the third etc. with distance, time, and cost criteria. The problem is, I am confused… >>> More

Developer IT

Calculate pi to an accuracy of 5 decimal places? - Developer IT

Calculate pi to an accuracy of 5 decimal places?

algorithms

Related posts about algorithms

Finding a problem in some task [closed]

Genetic algorithms

understanding evaluation function

How to know whether to create a general system or to hack a solution

How to implement a genetic algorithm with distance, time, and cost

Categories cloud