289 Commits

Author SHA1 Message Date
a98465230f [mypy] Fix type annotations for maths directory (#5782)
* [mypy] Fix annotations in `maths/series/p_series.py`

* Update p_series.py

* Update p_series.py

* Remove from excluded in mypy.ini

* Type annotation for series

* Annotate maths/proth_number.py (properly)

* Remove from excluded in mypy.ini

* Annotate average_mode.py

* Update average_mode.py

* Update average_mode.py

* Update average_mode.py

* Update average_mode.py

* Remove from excluded in mypy.ini

* Fix annotations in gamma_recursive.py

* Remove from excluded in mypy.ini

* Annotations for geometric_series.py

* Update geometric_series.py

* Update mypy.ini

* Update average_mode.py

* Update average_mode.py

* Update average_mode.py

* Update mypy.ini

* Update mypy.ini

* Update mypy.ini

* Update average_mode.py

* Update proth_number.py

* Update average_mode.py

* Update gamma_recursive.py

* Update proth_number.py

* Update mypy.ini

* Update geometric_series.py

* Update average_mode.py

* Update proth_number.py

* Update geometric_series.py

* Update geometric_series.py

* Update geometric_series.py

* Update p_series.py

* Update geometric_series.py

* Update p_series.py

* Update p_series.py

* Update geometric_series.py

* Update p_series.py

* Update p_series.py

* Remove data_structures/stacks/next_greater_element.py|

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-11-07 16:13:58 +01:00
7390777f9a Added 2 shaped in volume.py (#5560) 2021-11-04 17:08:18 +01:00
0ea5c734e1 sock_merchant.py: Matching socks by color (#5761)
* Python file for finding number of pairs

* updating DIRECTORY.md

* fixed iterative_pair.py

* further fixed with type casting

* fixed naming conventions

* further fixed with naming convention

* documented done

* build issue fixed

* updating DIRECTORY.md

* Revert "documented done"

This reverts commit 3be15ca374f3ea3f01f725912dba59b939b058b5.

* Update canny.py

* Update test_digital_image_processing.py

* Update sobel_filter.py

* requirements.txt fixed

* keras<2.7.0

* Update sock_merchant.py

* doctest with black fixed

* Update sock_merchant.py

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
2021-11-03 21:24:50 +01:00
3c8fec1316 Add Neville's algorithm for polynomial interpolation (#5447)
* Added nevilles algorithm for polynomial interpolation

* Added type hinting for neville_interpolate function arguments.

* Added more descriptive names

* Update nevilles_method.py

* Fixed some linting issues

* Fixed type hinting error

* Fixed nevilles_method.py

* Add ellipsis for doctest spanning multiple lines

* Update nevilles_method.py

Co-authored-by: John Law <johnlaw.po@gmail.com>
2021-11-02 18:07:36 +08:00
84cca2119c Rewrite maths/fibonacci.py (#5734)
* Rewrite parts of Vector and Matrix methods

* Refactor determinant method and add unit tests

Refactor determinant method to create separate minor and cofactor
methods.
Add respective unit tests for new methods.
Rename methods using snake case to follow Python naming conventions.

* Reorganize Vector and Matrix methods

* Update linear_algebra/README.md

Co-authored-by: John Law <johnlaw.po@gmail.com>

* Fix punctuation and wording

* Apply suggestions from code review

Co-authored-by: John Law <johnlaw.po@gmail.com>

* Deduplicate euclidean length method for Vector

* Add more unit tests for Euclidean length method

* Fix bug in unit test for euclidean_length

* Remove old comments for magnitude method

* Rewrite maths/fibonacci.py

* Rewrite timer and add unit tests

* Fix typos in fib_binet unit tests

* Fix typos in fib_binet unit tests

* Clean main method

Co-authored-by: John Law <johnlaw.po@gmail.com>
2021-11-01 18:06:35 +01:00
06ab650e08 Merge maths/fibonacci.py and maths/fibonacci_sequence_recursion.py (#5738)
* Rewrite parts of Vector and Matrix methods

* Refactor determinant method and add unit tests

Refactor determinant method to create separate minor and cofactor
methods.
Add respective unit tests for new methods.
Rename methods using snake case to follow Python naming conventions.

* Reorganize Vector and Matrix methods

* Update linear_algebra/README.md

Co-authored-by: John Law <johnlaw.po@gmail.com>

* Fix punctuation and wording

* Apply suggestions from code review

Co-authored-by: John Law <johnlaw.po@gmail.com>

* Deduplicate euclidean length method for Vector

* Add more unit tests for Euclidean length method

* Fix bug in unit test for euclidean_length

* Remove old comments for magnitude method

* Rewrite maths/fibonacci.py

* Rewrite timer and add unit tests

* Fix typos in fib_binet unit tests

* Fix typos in fib_binet unit tests

* Clean main method

* Merge fibonacci.py and fibonacci_sequence_recursion.py

* Fix fib_binet unit test

Co-authored-by: John Law <johnlaw.po@gmail.com>
2021-11-01 07:25:40 +01:00
3a4cc7e310 Hexagonal number sequence (#5640)
* Hexagonal number sequence 

A hexagonal number sequence is a sequence of figurate numbers where the nth hexagonal number hₙ is the number of distinct dots in a pattern of dots consisting of the outlines of regular hexagons with sides up to n dots, when the hexagons are overlaid so that they share one vertex.

This program returns the hexagonal number sequence of n length.

* Update hexagonalnumbers.py

* Update hexagonalnumbers.py

* Update hexagonalnumbers.py

* Update hexagonalnumbers.py

* Update and rename hexagonalnumbers.py to hexagonal_numbers.py

* Length must be a positive integer

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-10-29 09:39:32 +02:00
5c8a6c8247 Add Pollard's Rho algorithm for integer factorization (#5598) 2021-10-29 01:53:39 +02:00
61e1dd27b0 [mypy] Fix type annotation in euler_method.py (#5649)
* [mypy] Fix type annotation in euler_method.py

In line with issue #4052.

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2021-10-28 22:31:32 +02:00
615c428903 Add doctest for exception (#5629)
* Add doctest for exception

* Spelling correction
2021-10-27 18:30:03 +02:00
4eb5c12727 Sphere intersection and spherical cap volumes (#5579)
* sphere intersection + spherical cap volume formulas

* reformatted

* Update volume.py

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-10-27 00:28:26 +02:00
716beb32ed Improved prime_numbers.py (#5592)
* Improved prime_numbers.py

* update prime_numbers.py

* Increase the timeit number to 1_000_000

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-10-26 09:21:44 +02:00
bd9464e4ac mandelbrot.py: Commenting out long running tests (#5558)
* mandelbrot.py: Commenting out long running tests

* updating DIRECTORY.md

* Comment out 9 sec doctests

* Update bidirectional_breadth_first_search.py

* Comment out slow tests

* Comment out slow (9.15 sec) pytests...

* # Comment out slow (4.20s call) doctests

* Comment out slow (3.45s) doctests

* Update miller_rabin.py

* Update miller_rabin.py

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2021-10-23 18:15:30 +02:00
07141e4bcc Add doctests to prime_check function (#5503)
* added doctests to prime_check function

* fix doctests function name
2021-10-23 01:14:27 +08:00
fdf095f69f [mypy] check polygon and corrections (#5419)
* Update annotations to Python 3.10 #4052

* Add floats doctest

* Copy list to avoid changing input unpredictably

* Refactor code to make it readable

* updating DIRECTORY.md

* Improve raised ValueErrors and add doctest

* Split doctest in multiples lines

* Change ValueError to Monogons and Digons are not poly

* Correct doctest refering number of sides

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2021-10-21 21:13:42 +08:00
c0acfd46cb Fix factorial issues (#5496)
* updating DIRECTORY.md

* pass integer to `math.factorial` in `project_euler/problem_015`

* remove duplicated factorial function

* updating DIRECTORY.md

* Update maths/factorial_iterative.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update factorial_iterative.py

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
2021-10-21 15:06:32 +08:00
1e64bf4600 Re-organize math/series (#5044)
* added harmonic mean

* Update maths/series/harmonic_mean.py

Updated the write-up of reference given in the code.

Co-authored-by: John Law <johnlaw.po@gmail.com>

* changes in arithmetic and geometric mean code

* mean and series added in a single file

Co-authored-by: John Law <johnlaw.po@gmail.com>
2021-10-18 12:46:23 +08:00
545fec7a14 Fix documentation (#5311) 2021-10-15 12:33:39 +02:00
618f9ca885 Add Proth number to maths (#5246)
* Add Proth number to maths

* Add test for 0 and more informative output

* Fixing test failure issue - unused variable

* Update proth_number.py

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-10-14 16:30:52 +02:00
d561de0bd9 Add surface area of cone and cylinder and hemisphere (#5220)
* Update area.py

* Update area.py

* Update area.py

* Update area.py

* Update area.py

* Update area.py

* Update area.py

* Update area.py
2021-10-14 13:23:18 +02:00
9b4cb05ee5 Modified Euler's Method (#5258)
* Magnitude and Angle 

Core function to find Magnitude and Angle of two Given Vector

* Magnitude and Angle with Doctest

added Doctest to the functions

* Update linear_algebra/src/lib.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update linear_algebra/src/lib.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Changes done 

and Magnitude and Angle Issues

* black

* Modified Euler's Method

Adding Modified Euler's method, which was the further change to a Euler method and known for better accuracy to the given value

* Modified Euler's Method (changed the typing of function)

Modified function is used for better accuracy

* Link added

Added link to an explanation as per Contributions Guidelines

* Resolving Pre-Commit error

* Pre-Commit Error Resolved

* Pre-Commit Error import statement Change

* Removed Import Math

* import math built issue

* adding space pre-commit error

* statement sorter for doc

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-10-14 12:53:03 +02:00
729b4d875a Add Sylvester's sequence to maths (#5171)
* Add Sylvester's sequence to maths

* Update sylvester_sequence.py

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-10-10 20:02:44 +02:00
77b243e62b bugfix: Add empty list detection for find_max/min (#4881)
* bugfix: Add empty list detection for find_max/min

* fix shebangs check
2021-10-07 23:20:32 +08:00
a4d68d69f1 bugfix: Add abs_max.py & abs_min.py empty list detection (#4844)
* bugfix: Add abs_max.py & abs_min.py empty list detection

* fix shebangs check
2021-10-06 22:06:49 +08:00
b9f18152b7 Create check_polygon.py (#4605)
* Create check_polygon.py

* Update check_polygon.py

* Update maths/check_polygon.py

* Update check_polygon.py

* Update check_polygon.py

Co-authored-by: John Law <johnlaw.po@gmail.com>
2021-09-30 00:49:42 +08:00
dc07a85076 Update and rename check_valid_ip_address.py to is_ip_v4_address_valid.py (#4665)
* Update and rename check_valid_ip_address.py to is_ip_v4_address_valid.py

New test cases that the algorithm must detect:
* [ ] an octet much bigger than 255
* [ ] an octet is negative
* [ ] number of octets is less than 4
* [ ] number of octets is greater than 4
* [ ] an octet is a letter

* updating DIRECTORY.md

* Add two more tests to is_ip_v4_address_valid.py

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: John Law <johnlaw.po@gmail.com>
2021-09-23 02:03:11 +08:00
4761fef1a5 Double factorial iterative (#4760)
* Adding the double factorial algorithm

* Adding the double factorial algorithm

Co-authored-by: Jonathan Ocles <jocles@chiang.ec>
2021-09-19 03:22:47 +02:00
cecf43d648 Pyupgrade to Python 3.9 (#4718)
* Pyupgrade to Python 3.9

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2021-09-07 13:37:03 +02:00
5d5831bdd0 Physics new code (#4709)
* added gamma_function

* Add files via upload

* Resolved issue with str.format

And also changed output to math notation

* Update gamma_function.py

* Rename physics/gamma_function.py to maths/gamma_recursive.py

* Fixes: #4709 Fixed issues for pre-commit test

* Fixes: #4709 solved issues with doctests

And comments

* Fixes: #4709 Added failed tests to doctest

* Align with Python's Standard Library math.gamma()

Replicate the exceptions of https://docs.python.org/3/library/math.html#math.gamma

* Update gamma_recursive.py

* Update gamma_recursive.py

* Update gamma_recursive.py

* Update gamma_recursive.py

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-09-06 23:57:18 +02:00
097f830238 Avoid mutable default arguments (#4691) 2021-08-31 06:56:15 +02:00
imp
af0810fca1 [mypy] Fix type annotations for maths (#4617)
* Fix mypy errors for armstrong_numbers.py

* Fix mypy errors for harmonic_series.py

* Fix mypy errors for average_median.py
2021-08-18 12:45:07 +02:00
imp
d009cea391 Fix mypy error at maths (#4613)
* Fix mypy errors for maths/greedy_coin_change.py

* Fix mypy errors for maths/two_sum.py

* Fix mypy errors for maths/triplet_sum.py

* Fix the format of maths/greedy_coin_change.py

* Fix the format of maths/greedy_coin_change.py

* Fix format with pre-commit
2021-08-15 21:15:53 +02:00
63ac09eeae Created check_valid_ip_address.py (#4602)
* Created check_valid_ip_address.py

* fixed typos error

Co-authored-by: root <root@localhost.localdomain>
2021-08-08 20:21:26 +02:00
5957eabd3e Adding the double factorial algorithm (#4550) 2021-08-03 08:03:22 +02:00
4f9ee4330a basic_maths input check (#4486)
* Prime factor input check

* number_of_divisors input check

* sum_of_divisors input check
2021-06-16 08:34:32 +02:00
7d19d54f6f Average mean refactor (#4485)
* Average mean refactor

Added doctests and type hints to average_mean

* Wiki link added

* Empty list check added

Empty list check added
Type hint changed to typing.List
2021-06-16 08:33:23 +02:00
0eabdb54b1 Average median type hint (#4483)
* Update average_median.py

* Wikipediad link added
2021-06-14 22:39:51 +02:00
f37d415227 Add new algorithm for Armstrong numbers (#4474)
* Add a new algorithm for Armstrong numbers

* FAILING = (-153, -1, 0, 1.2, 200, "A", [], {}, None)

Co-authored-by: Christian Clauss <cclauss@me.com>
2021-06-04 22:28:26 +02:00
40e357f688 Mistake in maths/average_mode.py fixed. (#4464)
A serious bug was addressed with this pull request. The mode function previously
didn't return the mode of the input list. Instead, it always returned the first value.
Due to lacking tests, the bug was never caught. This pull request also adds new
functionality to the function, allowing support for more than one mode.

See #4464 for details.

* * Mistake in average_mode.py fixed. The previous solution was to returnthe
value on the first loop iteration, which is not correct, more than that it
used to delete repeating values, so result's array and check array lost
relation between each other

* Type hint added

* redundant check_list deleted

Co-authored-by: Maxim R. <49735721+mrmaxguns@users.noreply.github.com>

* Suggestions resolved

* output typing changed to Any
* test cases added

* Black done

File formatted

* Unused statistics import

statistics only used in doctest, now they are imported in doctest

* Several modes support added

Several modes support added

* Comment fix

* Update maths/average_mode.py

Co-authored-by: Maxim R. <49735721+mrmaxguns@users.noreply.github.com>

* Suggestions added

Co-authored-by: Maxim R. <49735721+mrmaxguns@users.noreply.github.com>
2021-06-04 15:16:32 -05:00
b3b89d9460 Armstrong number definition fix (#4466)
This is a documentation fix. This fix patches a mistake in the description of the Armstrong number.

* * Doc fix

* Armstrong number is not the sum of cube's of number digits, but
the sum of number's digits each raised to the power of the number of digits

* Update armstrong_numbers.py

Line shorten
2021-05-30 18:41:07 -05:00
6f21f76696 fix(ci): Update pre-commit hooks and apply new black (#4359)
* fix(ci): Update pre-commit hooks and apply new black

* remove empty docstring
2021-04-26 07:46:50 +02:00
806b3864c3 refactor: Remove default value of exponential_term (#4308)
exponential_term doesn't need a default value
2021-04-04 09:32:36 +05:30
8d51c2cfd9 move-files-and-2-renames (#4285) 2021-03-22 10:52:26 +01:00
dd757dce38 feat: Add greedy_coin_change.py algorithm (#3805)
* Hacktoberfest: Add greedy_coin_change.py file 

added the file in greedy_methods folder to implement the same method

Altered the code according to the changes that were requested.

* Added doctests.

doctests added to the function find_minimum_change.

* Added Greedy change file in Maths folder.

* updating DIRECTORY.md

* Deleted Greedy Method Folder

* updating DIRECTORY.md

* Update greedy_coin_change.py

* fix: black formatting issues

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Dhruv Manilawala <dhruvmanila@gmail.com>
2021-03-20 11:48:38 +05:30
2dc2c99f2b refactor: Rename explicit_euler.py to euler_method.py (#4275)
* reupload

* Rename explicit_euler.py to euler_method.py

* Delete file
2021-03-20 11:41:10 +05:30
987567360e Update our pre-commit dependencies (#4273)
* .pre-commit-config.yaml: mypy directories that pass

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2021-03-20 10:42:17 +05:30
ced83bed2c Add arithmetic_mean.py (#4243)
* arithmetic_mean

* arithmetic_mean

* checks

* checked

* Revert "checked"

This reverts commit 3913a39ae2c4ee183443eed67ee7427e3d322ad4.

* checks-3

* update-1
2021-03-12 08:25:54 +01:00
0435128cc0 Add geometric_mean.py (#4244)
* geometric_mean3

* update-GM.PY

* update-AM.PY

* Revert "update-AM.PY"

This reverts commit 11792ec9747bec5d00e51edcd462bf87150cdba9.
2021-03-01 22:30:16 +01:00
61f3119467 Change occurrences of str.format to f-strings (#4118)
* f-string update rsa_cipher.py

* f-string update rsa_key_generator.py

* f-string update burrows_wheeler.py

* f-string update non_recursive_segment_tree.py

* f-string update red_black_tree.py

* f-string update deque_doubly.py

* f-string update climbing_stairs.py

* f-string update iterating_through_submasks.py

* f-string update knn_sklearn.py

* f-string update 3n_plus_1.py

* f-string update quadratic_equations_complex_numbers.py

* f-string update nth_fibonacci_using_matrix_exponentiation.py

* f-string update sherman_morrison.py

* f-string update levenshtein_distance.py

* fix lines that were too long
2021-02-23 11:23:49 +05:30
dd4b265680 Add function to calculate area of triangle using Heron's formula (#4065)
* Update area.py

Modified area of triangle function. Added a new algorithm to calculate area when 3 sides are known

* Add files via upload

* Update area.py

* Update area.py

* Update area.py

* Update area.py

* Remove unnecessary whitespace

Co-authored-by: Dhruv Manilawala <dhruvmanila@gmail.com>
2020-12-28 13:36:57 +05:30