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Author SHA1 Message Date
Jigyasa G
e678879892 Adding doctests for sum_of_subset.py (#1333) 2019-10-12 02:29:50 +08:00
Jigyasa G
ea47ae2932 Adding missing Doctests (#1330) 
* Adding doctests in abbreviation

* Adding doctests in fibonacci.py
 2019-10-10 00:20:19 +05:00
Jigyasa G
b6cc37d461 mergesort added (#1313) 
* mergesort added

* added doctest
 2019-10-10 00:12:09 +05:00
Rishabh Kumar
61f7f94fde Create karatsuba.py (#1309) 
* Create karatsuba.py

Added karatsuba algorithm for multiplication of two numbers

* Update karatsuba.py

Added doctests and divmod

* Update karatsuba.py
 2019-10-08 17:25:50 +05:00
Du YuanChao
e80d248e65 optimization (#1303) 2019-10-08 13:25:00 +05:00
Du YuanChao
f0568d642e less code (#1292) 2019-10-08 13:24:01 +05:00
Du YuanChao
0da4d0a7f3 make code more readable (#1304) 2019-10-08 13:22:40 +05:00
Kaushik Amar Das
25701a9877 added doctests to scoring_functions.py (#1300) 
* added doctests to scoring_functions.py

* dedented lines
 2019-10-08 13:12:27 +05:00
Craigory V Coppola
3a06aba66a Update Linear Algebra Readme (#1298) 
Update formatting to better indicate matrix and vector sections
 2019-10-07 23:32:16 +05:00
Nishant-Ingle
06d736199b Added comment (#1294) 2019-10-07 23:29:14 +05:00
Maram Sumanth
22bd6ff967 Update average_mean.py (#1293) 2019-10-07 23:26:40 +05:00
Anup Kumar Panwar
01bc785e84 Fixed links in DIRECTORY.md (#1291) 2019-10-07 23:23:46 +05:00
mvhb
067a9b5136 adding input option and increasing the number of doctest (#1281) 
* adding input option and incresing the number of doctest

* mixing positive and negative numbers in the same test case
 2019-10-06 23:55:55 +05:00
Sushil Singh
9cc9f67d64 Chinese Remainder Theorem | Diophantine Equation | Modular Division (#1248) 
* Update .gitignore to remove __pycache__/

* added chinese_remainder_theorem

* Added Diophantine_equation algorithm

* Update Diophantine eqn & chinese remainder theorem

* Update Diophantine eqn & chinese remainder theorem

* added efficient modular division algorithm

* added GCD function

* update chinese_remainder_theorem | dipohantine eqn | modular_division

* update chinese_remainder_theorem | dipohantine eqn | modular_division

* added a new directory named blockchain & a files from data_structures/hashing/number_theory

* added a new directory named blockchain & a files from data_structures/hashing/number_theory
 2019-10-06 23:52:04 +05:00
Parth Paradkar
b1a769cf44 Add pure implementation of K-Nearest Neighbours (#1278) 
* Pure implementation of KNN added

* Comments and test case added

* doctest added
 2019-10-06 23:50:50 +05:00
TheRealDarkCoder
0a7d387acb Added a python script for finding sum of arithmetic series (#1279) 
* Added a python script for finding sum of arithmetic series

* Added some linting

* Resolved comments

* Fixed flake8 test
 2019-10-06 23:47:32 +05:00
Nikhil Nayak
c4a97677a5 Update fibonacci_sequence_recursion.py (#1287) 
- Fixed minor bugs.
 - Minimized Codes
 2019-10-06 23:35:56 +05:00
Christian Clauss
6ebd899c01 CONTRIBUTING.md: Fix mistake in doctest ;-) (#1266) 
* CONTRIBUTING.md: Fix mistake in doctest ;-)

* Update CONTRIBUTING.md
 2019-10-05 23:32:58 +08:00
William Zhang
9eac17a408 psf/black code formatting (#1277) 2019-10-05 10:14:13 +05:00
Kaushik Amar Das
07f04a2e55 adding jaccard similarity (#1270) 
* adding jaccard similarity

* renaming files. zeebus! what an headache
 2019-10-04 09:59:45 +02:00
Simon Landry
309204a581 Add problem 42 solution (#1259) 2019-10-03 22:48:53 +02:00
Simon Landry
6e69208666 Add problem 32 solution (#1257) 2019-10-03 22:47:39 +02:00
Simon Landry
d28fc71202 Add problem18 solution (#1260) 2019-10-03 22:47:08 +02:00
Simon Landry
f970c73061 Add problem 23 solution (#1261) 2019-10-03 22:08:25 +02:00
Shubham garg
03aba96c0a added defination (#1244) 2019-10-03 21:31:11 +02:00
Kaushik Amar Das
0e2d6b2963 adding softmax function (#1267) 
* adding softmax function

* wraped lines as asked
 2019-10-03 16:30:36 +02:00
William Zhang
0e333ae021 added bogobogosort (#1258) 
* added bogobogosort

* fix indentation error
 2019-10-03 11:17:30 +02:00
Parth Paradkar
390feb0b23 Add doctests for sorting algorithms (#1263) 
* doctests and intro docstring added

* doctests, docstrings and check for empty collection added

* Intro docstring added

* python versions reversed
 2019-10-03 10:19:11 +02:00
Anup Kumar Panwar
b8490ed097 Removed owners from README (#1254) 2019-10-03 15:17:22 +08:00
Christian Clauss
df44d1b703 Update CONTRIBUTING.md (#1250) 
* Update CONTRIBUTING.md

* Update CONTRIBUTING.md

* Add Python type hints and mypy
 2019-10-02 21:49:00 +05:30
Shoaib Asgar
b738281f2b maths-polynomial_evalutation (#1214) 
* maths-polynomial_evalutation

* added doctest and removed redundancy
 2019-10-01 08:58:00 +02:00
yijoonsu
189b350312 Deque (#1200) 
* deque add pop

* deque add remove
 2019-09-30 16:27:41 +02:00
Kaushik Amar Das
4617aa78b2 DBSCAN algorithm (#1207) 
* Added dbscan in two formats. A jupyter notebook file for the
storytelling and a .py file for people that just want to look at the
code. The code in both is essentially the same. With a few things
different in the .py file for plotting the clusters.

* fixed LGTM problems

* Some requested changes implemented.
Still need to do docstring

* implememted all changes as requested
 2019-09-29 10:44:41 +02:00
Christian Clauss
a79fc2b92a Fix the build typo: fn --> fn1 (#1205) 2019-09-26 21:02:04 +05:30
Charitoc
2375bfbee5 Adding stooge sort (#1206) 
* Adding stooge sort

* Updated doctest

* Just added underscore in the name
 2019-09-26 17:19:01 +02:00
Raj
6ac7b1387f Min head with decrease key functionality (#1202) 
* Min head with decrease key functionality

* doctest added

* __str__ changed as per Python convention

* edits in doctest

* get_value by key added

* __getitem__ added
 2019-09-26 00:03:31 +02:00
Aniruddha Bhattacharjee
e40d4a25f9 Added Matrix Exponentiation (#1203) 
* Added the matrix_exponentiation.py file in maths directory

* Implemented the requested changes

* Update matrix_exponentiation.py
 2019-09-25 20:08:45 +02:00
luoheng
01601e6382 Add disjoint set (#1194) 
* Add disjoint set

* disjoint set: add doctest, make code more Pythonic

* disjoint set: replace x.p with x.parent

* disjoint set: add test and refercence
 2019-09-23 05:08:20 +02:00
Holden-Lin
837bfffd99 Rename sorted_vector_machines.py to support_vector_machines.py (#1195) 
SVM stands for support vector machines. Intuitively, a support vector is the vector right near the decision boundary.
 2019-09-22 16:56:32 +02:00
Denis Trofimov
04962c0d17 Fix lgtm error display #1024 (#1190) 
* fix: Syntax Error lgtm display in matrix/matrix_operation.py.

* Testing for None should use the 'is' operator.

* fix: Too many arguments for string format.

* fix: supress lgtm alert as false positive.

* style: Unnecessary 'pass' statement.

* Revert "fix: Syntax Error lgtm display in matrix/matrix_operation.py."

This reverts commit 4c629b4ce1.
 2019-09-21 16:23:34 +02:00
BAKEZQ
a2b5a90c11 Added sequential minimum optimization algorithm for SVM (#508) 
* Implementation of sequential minimal optimization algorithm

* Update smo.py

* Add demonstration of svm partition boundary

1:Use matplotlib show svm's partition boundary
2:Automatically download test dataset

* Update smo.py

* Update smo.py

* Rename smo.py to sequential_minimum_optimization.py

* Update doc and simplify the code.

Fix filename typo error in doc.
Use ternary conditional operator in predict()

* Update doc.
 2019-09-18 22:01:05 +08:00
Sangeet K
768700b91f Add delete to trie.py + tests (#1177) 
* Add delete to trie.py + tests

* Minor fixes + tests

* Remove noqa comments + modify tests for Travis CI to detect

* Minor improvement
 2019-09-13 22:24:25 +02:00
PatOnTheBack
6fa3c0b170 Add Flake8 F4 Tests to .travis.yml (#974) 
* Add Flake8 F4 Tests to .travis.yml

F4 tests check for import errors. Implements issue #973

* Remove wildcard imports
 2019-09-13 14:07:24 +02:00
Marvin M. Michum
f8e30cfab1
Digital Image Processing Tests (#1178) 
* add version of smaller image

* swap image in tests

* edits for image src
 2019-09-13 07:40:14 -04:00
Kiril Bangachev
47d17951b8 Add Kth lexicographic permutation (#1179) 
* Add Kth lexicographic permutation

Function that computes the kth lexicographic permtation of 0,1,2,...,n-1 in O(n^2) time

* Update kth_lexicographic_permutation.py

Addressed requested changes
 2019-09-13 13:13:55 +02:00
Christian Clauss
030600f9b3
Update matrix_class.py (#1175) 2019-09-10 07:49:07 +02:00
Simon Landry
3c3f92db53 Add problem 67 solution (#1170) 2019-09-08 10:40:07 +02:00
Jasper
5b483be73b Added OOP approach to matrices (#1165) 
* Added OOP aproach to matrices

* created methods for minors, cofactors, and determinants and added corresponding doctests

* Added methods for adjugate, inverse, and identity (along with corresponding doctests) to matrix_class.py
A small bug persists that causes the doctest to fail.
After a couple Matrix objects are printed, the next one is printed in a different format.

* formatted matrix_class.py with python/black

* implemented negation and exponentiation as well as corresponding doctests in matrix_class.py.  Also implemented eq and ne comparison operations

* changed __str__ method in matrix_class.py to align with numpy standard and fixed bug in cofactors method

* removed property decorators from several methods in matrix_class.py
 2019-09-08 07:07:14 +02:00
KirilBangachev
a41a14f9d8 Add radix2 FFT (#1166) 
* Add radix2 FFT

Created a dynamic implementation of the radix - 2 Fast Fourier Transform for fast polynomial multiplication.

Reference: https://en.wikipedia.org/wiki/Cooley%E2%80%93Tukey_FFT_algorithm#The_radix-2_DIT_case

* Rename radix2_FFT.py to radix2_fft.py

* Update radix2_fft printing 

Improved the printing method with f.prefix and String.join()

* __str__ method update

* Turned the tests into doctests
 2019-09-06 11:06:56 +02:00
Jai Kumar Dewani
ab25079e16 Update DIRECTORY (#1161) 
* Update DIRECTORY

* Updated DIRECTORY

* Fixed bug in directory build and re-build the directory.md

* fixed url issue

* fixed indentation in Directory.md
 2019-09-06 11:02:37 +02:00