Collatz | Simple Collatz conjecture example | Data Manipulation library
kandi X-RAY | Collatz Summary
kandi X-RAY | Collatz Summary
Basically a small python script that attempts to provide a simple example of the Collatz conjecture. It doesn't do much, but it does make a pretty pattern. Requires: Modern Python Numpy Matplotlib (for plotting).
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- Collate the number of times a positive integer v .
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Community Discussions
Trending Discussions on Collatz
QUESTION
I'm trying to do the Collatz conjecture on a list of numbers to check which one is "holding" the most. the problem is the code keeps telling me "TypeError: unsupported operand type(s) for %: 'list' and 'int'"
...ANSWER
Answered 2022-Apr-02 at 22:25This code will work:
QUESTION
I am a complete rookie to programming in C and have been trying to program a system that will take an integer input, perform a calculation, and tack them onto a string that will then be passed to a shared memory. Apologies if I am being an idiot but I am getting an error about an incompatible pointer type. I dont know how I can fix this error. Edit: I apologize for the bad initial question. Full code is included
...ANSWER
Answered 2022-Mar-25 at 23:46According to this documentation, the function fgets
takes 3 parameters, in this order:
- a pointer to the memory buffer to write to
- the size of the memory buffer
- the
FILE *
stream to read from, for examplestdin
The array newStr
is not a FILE *
stream. Therefore, it is not valid as a third parameter.
If you do not intend to read from a FILE *
stream (such as stdin
or a file opened with fopen
), then you should not be using the function fgets
.
QUESTION
Is there a way to use list comprehension's to workout Collatz conjecture without using a while statement or another method to append the n value to the ls without adding ls after each statement?
...ANSWER
Answered 2022-Mar-14 at 20:45Well while
is what you use when you don't know yet how many steps it will take and since that is kind of baked into the logic of finding the conjecture for a value there is not really a way around it. I personally think there is nothing bad about using while
loops.
You can still make the code a bit more compact and readable while keeping the while
loop, e.g. like this:
QUESTION
I am trying to generate an animated graph for my school project . First, I made a still representation of the Collatz conjecture, but my teacher told me to animate the graph:
...ANSWER
Answered 2022-Mar-04 at 17:35As the lines have different lengths, I would refrain from using FuncAnimation and instead use the interactive plotting with plt.ion()
. I tried to mainly keep your structure, but introduced some changes.
First, I got rid of the x-range lists. This is implicit information of your list l
, so we don't have to collect it separately.
Second, as the graph does not auto-update when plotting outside values, we have to collect the maximum values for the x and y axes, so we know when we have to update the graph limits.
Finally, we plot each line object once, then update its values in each new iteration. An implementation could then look like this:
QUESTION
I am using the Raylib GUI framework for a project that displays all the nodes within an iteration of the Collatz Conjecture. In my program, I have a class for a Node
object that acts simply as a circle with a labelled number. The variable text
in my draw
method, however, has an issue; C26815: The pointer is dangling because it points at a temporary instance which was destroyed
. I'm new to C++ and don't have access to any books to teach me at the moment, hence I'm not entirely sure what a "dangling" pointer is or what it means, but I'm fairly certain it's the reason I can't display any text on my nodes. Here's my Node
class:
ANSWER
Answered 2022-Mar-03 at 10:50In this line
QUESTION
#I want this code to output....
def Collatz(n):
while n != 1:
print(n, end = ', ')
if n & 1:
n = 3 * n + 1
else:
n = n // 2
print(n)
Collatz(777)
...ANSWER
Answered 2022-Mar-02 at 06:47You can use an extra variable, here i
, to print lables.
Also, I removed end
parameter so that it print line by line. In addition, I used f-string
for printing format. For more detail, please see https://realpython.com/python-f-strings/
QUESTION
I'm playing around with the Collatz conjecture (see below), and I have this function:
...ANSWER
Answered 2022-Feb-12 at 13:22Indeed, the whole function body is optimized out:
QUESTION
I recently learned about Collatz's conjecture. I found it fun, so I just wanted to find out if I could create a small program in C capable of checking the numbers up to a defined number and turned out I wasn't. Here is my program
...ANSWER
Answered 2022-Feb-03 at 21:01You're resetting u
in the wrong place:
QUESTION
I am trying to make the Collatz conjecture in JS but I have a problem and I do not understand it. When I click on the button it return me 0, can someone help me please?
My js code:
...ANSWER
Answered 2021-Oct-02 at 09:10You are reading the value before the user has had a chance to enter a number.
QUESTION
I'm reading the book "Automate the boring stuff" by Al Sweigart to start learning Python (it is free online, so you can check it if you're interested, or you think that it would help solve my problem). And by the end of Chapter 3, you are given an exercise, creating a program that can execute the Collatz Conjecture. I've successfully created a function that takes an input integer and divides it by 2 or multiplies it by 3 and adds 1 for even and odd numbers, respectively.
The issue comes, when I try to take the value returned by the function, and assign it to a variable(so I can make a loop that will stop when the number gets to one), it instead calls the function, and when I try to use the function inside a while loop it returns a None
value.
I tried comparing it to other program that simulates a magic 8-ball, because the way I made the way I made the Collatz program is very similar to the 8-ball, but somehow the 8-ball does work, and the Collatz doesn't, and since I'm currently out of ideas, I ask you if you can notice any typos in my code that may indicate why this is happening.
I thank you in advance for your time and effort. PS: don't forget to drink some water, it is good for you <3
THE CODES:
1.-Collatz(no while loop included)
...ANSWER
Answered 2022-Jan-30 at 07:01You have unused variables, and you need to define a return value for collatz()
.
Right now, you define a variable newNumber
, but never use it anywhere in your code. You should be updating startNumber
instead (renamed to num
below for readability). You also need to define a return value for collatz()
; otherwise, it will return None
, which isn’t what the question asks for.
Here’s a solution which resolves these issues.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install Collatz
You can use Collatz like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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