pi Questions

3

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how do you overwrite the previous print in python 2.7? I am making a simple program to calculate pi. here is the code: o = 0 hpi = 1.0 i = 1 print "pi calculator" acc= int(raw_input("enter accurac...
Hypoploid asked 25/3, 2012 at 13:55

9

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One of the challenges on w3resources is to print pi to 'n' decimal places. Here is my code: from math import pi fraser = str(pi) length_of_pi = [] number_of_places = raw_input("Enter the number...
Mutualism asked 31/7, 2017 at 12:58

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I could not find any information about mathemtical constants in the Tensorflow API neither in Basic Math functions nor in Math Ops. I was able to get it by import math as m pi = tf.constant(m.pi...
Committal asked 1/9, 2017 at 7:44

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I came across some weird behavior by math.cos() (Python 3.11.0): >>> import math >>> math.cos(math.pi) # expected to get -1 -1.0 >>> math.cos(math.pi/2) # expected to get...
Cobwebby asked 26/2, 2023 at 1:35

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In a project using SciPy and NumPy, when should one use scipy.pi vs numpy.pi vs just math.pi? Is there a difference between these values?
Jobbery asked 28/9, 2012 at 18:36

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I'm looking for the fastest way to obtain the value of π, as a personal challenge. More specifically, I'm using ways that don't involve using #define constants like M_PI, or hard-coding the number ...
Yacano asked 1/8, 2008 at 5:21

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I'm trying to add a repository to ppa with the add-apt-repository commands but the _gi module from Python is not found. I did this command : sudo add-apt-repository ppa:s-mankowski/ppa-kf5 Here i...
Warmedover asked 18/12, 2019 at 10:19

1

I recently made a Pi calculator in Java and when I run it, it defines Pi down to the same amount incredibly fast but then it gets stuck at 3.141592653589787 and only outputs that. Here's my code if...
Nerva asked 11/9, 2018 at 19:33

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I tried to use this code to calculate pi to many decimal places: def pi(): pi = 0 for k in range(350): pi += (4./(8.*k+1.) - 2./(8.*k+4.) - 1./(8.*k+5.) - 1./(8.*k+6.)) / 16.**k return pi ...
Kilk asked 25/11, 2013 at 19:36

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How can I write a function which will return pi (π) to a given number of decimal places? Speed is not a concern. I've been looking at http://bellard.org/pi/, but I still don't understand how to ge...
Encourage asked 16/4, 2010 at 16:52

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I'm looking to compute the nth digit of Pi in a low-memory environment. As I don't have decimals available to me, this integer-only BBP algorithm in Python has been a great starting point. I only n...
Learning asked 24/5, 2010 at 5:15

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I was trying various methods to implement a program that gives the digits of pi sequentially. I tried the Taylor series method, but it proved to converge extremely slowly (when I compared my result...
Lysol asked 11/1, 2013 at 17:15

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I have always wanted to find an algorithm that did this. I do not care how slow it is, just as long as it can return the nth digit of Pi: ex: size_t piAt(long long int n) { } Preferably, not us...
Whinchat asked 6/5, 2011 at 1:11

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I have written a function that takes in a long long value n and uses that as the number of iterations to go through. The function should give a good estimate of pi, however, all the values for larg...
Kraus asked 13/3, 2019 at 18:19

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Is there a way to calculate pi in Javascript? I know there you can use Math.PI to find pie like this: var pie = Math.PI; alert(pie); // output "3.141592653589793" but this is not accurate. What ...
Stygian asked 10/6, 2015 at 4:40

2

How can you display pi superscript if it's not in Unicode? It's for a javascript program I'm making. I can't think of any way around it.
Thrombophlebitis asked 19/4, 2020 at 14:16

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What's the most accurate rational pair for Pi representable with two 64 bit integers? Feel free to include other int types if you'd like. Here's what I came up with, but I'm sure it can get more ac...
Kioto asked 15/7, 2020 at 23:16

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I have been thinking about this issue and I can't figure it out. Perhaps you can assist me. The problem is my code isn't working to output 1000 digits of pi in the Python coding language. Here's ...
Boyhood asked 25/1, 2012 at 14:59

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I have U and V wind component data and I would like to calculate wind direction from these values in R. I would like to end up with wind direction data on a scale of 0-360 degrees, with 0° or 360° ...
Insurgent asked 31/1, 2014 at 16:5

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I do understand why we have this in standard headers: #define M_PI 3.14159265358979323846 // pi However, I don't see much benefit in having these: #define M_PI_2 1.57079632679489661923 //...
Kero asked 5/3, 2020 at 18:17

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The hash of infinity in Python has digits matching pi: >>> inf = float('inf') >>> hash(inf) 314159 >>> int(math.pi*1e5) 314159 Is that just a coincidence or is it inte...
Nathanialnathaniel asked 20/5, 2019 at 20:0

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I am a python beginner and I want to calculate pi. I tried using the Chudnovsky algorithm because I heard that it is faster than other algorithms. This is my code: from math import factorial from...
Collaborate asked 2/2, 2015 at 19:13

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In R I have written this function ifun <- function(m) { o = c() for (k in 1:m) { o[k] = prod(1:k) / prod(2 * (1:k) + 1) } o_sum = 2 * (1 + sum(o)) # Final result print(o_sum) } This f...
Millimicron asked 5/8, 2018 at 11:20

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How can I calculate the value of PI using C#? I was thinking it would be through a recursive function, if so, what would it look like and are there any math equations to back it up? I'm not too f...
Boiney asked 2/9, 2008 at 12:39

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What is the motivation for defining PI as PI=4.D0*DATAN(1.D0) within Fortran 77 code? I understand how it works, but, what is the reasoning?
Birthplace asked 28/1, 2010 at 21:2

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