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Category Archives: Math
Wiki + Spreadsheet
The underlying concept is very simple: spreadsheets are a way to organize text, numbers and formulas into what might be seen as a natively numeric environment: a matrix. So what would happen if we loosed some of the bolts of … Continue reading
Posted in Math, Project, Python
5 Comments
Hey, nice float!
python-nicefloat is a Python module implementing an algorithm based on the paper “Printing Floating-Point Numbers Quickly and Accurately”, by Robert G. Burger and R. Kent Dybvig. The implemented algorithm will find the shortest, correctly rounded output string representing a decimal … Continue reading
Posted in Math, Project, Python
4 Comments
Problem of the Week at University of Massachusetts
University of Massachusetts has a very nice Problem of the Week service where they post a new math related problem every monday. At that time they report the percentage of people that correctly answered the question as well. To submit … Continue reading
Posted in Math, Puzzle, Python
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All combinations of N elements
Here’s a snippet to compute all combinations of N elements over K positions.
Posted in Math, Python, Snippet
3 Comments
Permutations of all subsets
Another snippet to compute the permutations of all subsets.
Posted in Math, Python, Snippet
3 Comments
Permutations and derangements
Two snippets to compute permuatations and derangements in Python.
Posted in Math, Python, Snippet
4 Comments
Toy interpreter for Linear Algebra
While working with Linear Algebra, I’ve decided to build a toy interpreter in C to play around. This was a quite interesting experiment for myself, since it was the first time I’ve built a complete (with tokenizer, compiler, and interpreter) … Continue reading