Unanswered Questions
837 questions with no upvoted or accepted answers
30
votes
0
answers
860
views
Definitional Returns. Solved. Mostly
I have made the bold claim that a longstanding problem in Rebol is "now solved"...that of "definitional returns".
But of course, such claims need some peer review, and there's always some new trick ...
CommunityBot
- 1
23
votes
0
answers
668
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Multiplying big numbers using Karatsuba's method
The Karatsuba algorithm, first published in 1962, aims to speed up the multiplication of big numbers by reducing the number of 'single-digit-multiplications' involved.
Because of its complexity (...
- 4,773
17
votes
0
answers
879
views
Let's register that Django user
Short intro
So, I've been using Django for a while now and thought it would be nice to start a simple application. In an ideal World, each app must have a way of letting its users register and that's ...
- 29.1k
10
votes
0
answers
1k
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Cyther: The Cross Platform Cython/Python Compiler (Take 2)
I recently posted an earlier version of this code on Code Review, and now with the given suggestions and many other improvements, I am back. I included the description of exactly what Cyther is ...
8
votes
0
answers
129
views
Stable variation of built-in sort
Ruby's built-in sorts are unstable. The stable_sort gem monkey-patches Ruby's built-in library to have stable sorts which include nearly all the functionality of the built-in sorts, but with the ...
- 3,284
8
votes
0
answers
133
views
Simulation of a mechanical arm
The code that I am doing is to simulate a scenario where a mechanical arm search pieces closer and these pieces selected the mechanical arm leaves in a position defined closer.
...
CommunityBot
- 1
7
votes
0
answers
444
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C# Generic high performance vectorized math operations
I'm writing a library which simplifies the usage of intrinsics in C#.
It's a generic library which supports all numeric types.
The goal of this library is to perform these operations at the highest ...
7
votes
0
answers
758
views
Unity3D shader for rendering 2D sprites with a pseudo-glitch effect
I'm making a puzzle game in Unity with sprite-based graphics. When the game is paused, I want to hide most game elements, because I don't want the player to be able to pause and leisurely think about ...
- 35k
7
votes
0
answers
5k
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Cubic spline interpolation in Python from scratch
I implemented the cubic spline interpolation explained in
https://en.wikipedia.org/wiki/Spline_interpolation as a Python class. Of course, such an interpolation should exist already in some Python ...
7
votes
0
answers
164
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Modeling tabular structure in MSSQL to store data like Excel sheet applying Column inheritance
I've created this database structure to store tabular information (it's a simplification of my real structure but enough to show the point). In it I have Sheets and ...
7
votes
0
answers
569
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Red-black tree appears to be slower than std::multimap
I've written a red-black tree in C as an exercise. The tree works and it is not bad, but it is about 10% slower than std::multimap from libstdc++ which I'm ...
- 145k
6
votes
0
answers
107
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Optimizing SymPy Implementation of prime factorization in form of QUBO
I'm trying to reproduce a paper on Prime Factorization. This paper converts the problem into a QUBO form, which then we can map it to an Ising Minimizer. I've basically done everything and I've ...
- 85k
6
votes
0
answers
140
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A Python script that creates n-flakes
I have written a simple Python script that generates n-flakes using matplotlib.
Wikipedia article on N-flake.
I wrote two functions, one function generates pentaflake, the other generates hexaflake, I ...
- 145k
6
votes
0
answers
319
views
Thread Art Generation that Creates Embroidery Files
I have made a thread art generator that creates thread patterns from images. Mine is a bit different as it outputs an embroidery file (It embroiders quite nicely, though the settings need a lot of ...
- 304
6
votes
0
answers
308
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Chart Based Animations In Excel VBA
I've been working on re-writing comfortablydrei's answer to this PPCG Question regarding creating a illusion animation in pure Excel VBA. So far, I've been able to rewrite the code to function in VBA, ...
- 340