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Newest 'mathematics' Questions - Code Review Stack Exchange
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Learn more about TeamsQuestions 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?)
646 questions
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2
votes
3
answers
147
views
Calculating volume expressions of \$n\$ -dimensional balls in Java - follow-up 2
(See the previous iteration.)
This time, I have refactored my code a bit. It follows immediately:
Code
...
4
votes
2
answers
200
views
Calculating volume expressions of n -dimensional balls in Java - follow-up
Intro
(The previous/initial iteration is there.)
(The next iteration is there.)
This time, I have incorporated a nice answer by Martin R.
Updated code
...
4
votes
1
answer
304
views
Calculating volume expressions of \$n\$-dimensional balls in Java
(See the next iteration.)
Intro
This time I have a Java program that prints some expression denoting the volumes of \$n\$-dimensional balls. All the math behind this is there.
Code
...
5
votes
1
answer
328
views
Multiplying two large numbers whose digits you have in a string, in AEC compiled to WebAssembly
You can see it live here: https://flatassembler.github.io/multiplying-strings-aec.html
...
2
votes
0
answers
21
views
Mathematica implementation of Welch method for constructing Costas arrays
I ported C++ implementation of Welch method for constructing Costas arrays to Mathematica.
Any feedback would be appreciated.
...
6
votes
2
answers
429
views
(Codewars) Goldbach's Conjecture (by @rsalgado) in Ruby
Link to kata: linkRank: 6 kyuKata author: @rsalgado
I have been recently learning Ruby-lang and have been attempting to solve the following kata from Codewars involving Goldbach's Conjecture:
...
5
votes
2
answers
824
views
Bruteforce integer multiplication in Java
Intro
This time, I have attempted to prove the following bruteforce multiplication formula:
$$
(a_n \cdots a_0) \cdot (b_m \cdots b_0) = \sum_{i = 0}^n \sum_{j = 0}^m a_i b_j \cdot 10^{i + j},
$$
...
2
votes
0
answers
147
views
How to make this arbitrary precision π calculator using Machin-like formula run faster?
Two days ago (or yesterday depending on your timezone) was π-day. So I thought it was a good day to calculate π.
I used Machin-like formula to calculate π, in homage of William Shanks, who calculated ...
-5
votes
1
answer
354
views
int128 handling in C code, gcc / glibc / linux - follow up IV [closed]
[edit] Hint: a similar project for C++20 which - as far as I see - also manages bigger than 128-bit integers can be found at: Infinite precision integer in C++20 . [/edit]
I got lots of kind hints on ...
7
votes
2
answers
249
views
Two-Step Linear Equation Solver with Input Validation and Formatting
This code defines a function to solve two-step linear equations of the form coefficient * variable + constant = solution. It prompts the user for the coefficient, ...
10
votes
3
answers
1k
views
Computing π(x): the combinatorial method
This is my C++ implementation of Computing π(x): the combinatorial method by Tomás Oliveira e Silva. The math involved is elementary number theory, but fiddly and not the focus here. I have ...
4
votes
2
answers
122
views
Polynomial.java - multiplication algorithms: naïve, Karatsuba, FFT
Intro
This post is a supplement to Polynomial.java - a Java class for dealing with polynomials with BigDecimal coefficients. It presents the three polynomial multiplication algorithms. Given two ...
7
votes
3
answers
732
views
Polynomial.java - a Java class for dealing with polynomials with BigDecimal coefficients
(You can find multiplication algorithms in Polynomial.java - multiplication algorithms: naïve, Karatsuba, FFT.)
Intro
This post presents the main class (Polynomial) ...
5
votes
2
answers
749
views
Polynomial.java - A tiny Java library for dealing with polynomials with double coefficients
Intro
This time, I have produced Polynomial.java. It is a simple polynomial class that stores its coefficients as double values in an array.
Code
...
7
votes
1
answer
885
views
`BigInt` implementation in C++23
Cooked this up in 3 days because I was bored and thought this would be an interesting project to work on. This BigInt implementation does what you'd expect it to do,...
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