Questions tagged [mathematics]
For code that aims to solve problems in all branches of mathematics. (Please do NOT use this tag for incidental trivial use of arithmetic. A simple test to apply is: would an amateur or professional mathematician take an interest in the question?)
629
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Optimizing Pi Estimation Code
I'm trying to write a program in Python that estimates pi, but to get a more accurate estimation in a feasible amount of time, I want to make it faster.
I'm using a method that estimates the area of ...
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1
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reassigning a variable with a divide operator gives nan in program when zero is entered [closed]
Please keep in mind that I am very new to programming.
I was given a the following question as my assignment in C++:
Write a program that computes the value of an nth degree polynomial $$A(x)=a_0+...
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Toom-3 big-integer multiplication algorithm
I am developing a C++ big integer library for C++11, 14, 17, 20, etc., as an exercise.
The Toom-3 algorithm is resisting me a little bit. AFAICT, it does produce the right results but not as fast as I ...
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4
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1
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Array Math to Calculate Ice Thickness -- Need Help Simplifying
I posted this on Stack but since it's working code, it was suggested I post it here. I wrote this code to calculate ice thickness using the following equation from Stephenson, 2011.
It's a daily ...
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1
answer
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Efficiently generate a random position inside an outer rectangle but outside an inner rectangle
It should be a uniform distribution (ie: every point is equally as likely). I also don't want to use the simple solution of: "in a loop check to see if the current generated point is within the ...
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2
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Can I make my percolation in python function more efficient?
We've been tasked with finding out how many randomly distributed discs with radius = 1 it takes to form a chain of discs from the left side to the other of a square with side length = sqrt(n), and ...
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2
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1
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Multithreaded sparse linear solver in Python
I would like to know if there are any multithreaded sparse linear solvers for LU decomposed sparse matrices.
I want to increase the solving speed of a system like:
...
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4
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Optimal Solution for the Four Divisors Problem on LeetCode
I recently encountered the Four Divisors problem on LeetCode and managed to achieve a 100% beat rate with my solution. I'd like to share it with you all and gather feedback on its effectiveness and ...
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Sine function guessing cognitive app
Please help with improving this application. It is a guessing game, for learning the values of the sine function, and boosting brain power in the process.
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1
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Combinations of elements in array
I wrote this code to get all possible arrangements for an array containing 3 elements:
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1
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Taking array of numbers, having a max weight, and distributing excess weight to ln max weight numbers
The goal is to take an array of numbers, have a max weight (saying 40%), and if any number above the max_num = sum * weight is present, remove the excess and ...
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A simple Vector library in C
I recently started working on my own vector library for a project and I thought it would be a good idea to get some insight on the code that I have written so far.
It's very simple as I'm new to C.
...
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4
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1
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Rating math quality via unit-in-the-last-place (ULP) differences
Goal
Please review code in fp.h and fp.c to index and compare floating point values.
Background
C code can perform floating ...
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Implementing Preconditioned conjugate gradient
I have implemented the Preconditioned Conjugate Gradient (PCG) method for solving a system of linear equations in Python and I would appreciate it if someone could verify its correctness since I am ...
- 29
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Python integer optimization with PuLP involving polynomials that I think can be faster
I have a problem where we are given multivariate polynomials in variables like y_i and z_j and the goal is to express them as sums of products of terms of the form y_i-z_j with nonnegative integer ...
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