TheAlgorithms-C-Plus-Plus/math
Bensuperpc f7d656cb17
feat: Add inverse inverse root functions (#1570)
* Add inverse inverse root function

Add inverse inverse root function

Signed-off-by: Bensuperpc <bensuperpc@gmail.com>

* Update comment

Update comment

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* Update math/inv_sqrt.cpp

Change to IO operations

Co-authored-by: David Leal <halfpacho@gmail.com>

* Update math/inv_sqrt.cpp

Update comment

Co-authored-by: David Leal <halfpacho@gmail.com>

* Update math/inv_sqrt.cpp

Update comment

Co-authored-by: David Leal <halfpacho@gmail.com>

* Update math/inv_sqrt.cpp

Co-authored-by: David Leal <halfpacho@gmail.com>

* Update math/inv_sqrt.cpp

Co-authored-by: David Leal <halfpacho@gmail.com>

* Fix fist warning

Fix fist warning

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* Fix warning N2

Fix warning N2

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* Fix warning N3

Fix warning N3

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* Fix warning N4

Fix warning N4

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* updating DIRECTORY.md

* Update math/inv_sqrt.cpp

Co-authored-by: David Leal <halfpacho@gmail.com>

* Update math/inv_sqrt.cpp

Co-authored-by: David Leal <halfpacho@gmail.com>

* Update math/inv_sqrt.cpp

Co-authored-by: David Leal <halfpacho@gmail.com>

* clang-format and clang-tidy fixes for 1acc7773

* Update math/inv_sqrt.cpp

Co-authored-by: David Leal <halfpacho@gmail.com>

* Update math/inv_sqrt.cpp

Co-authored-by: David Leal <halfpacho@gmail.com>

* Add tests and improve comment

Add tests and improve comment

Signed-off-by: Bensuperpc <bensuperpc@gmail.com>

* Update math/inv_sqrt.cpp

Co-authored-by: David Leal <halfpacho@gmail.com>

* Add default template type (double)

Add default template type (double)

Signed-off-by: Bensuperpc <bensuperpc@gmail.com>

* Update comment

Update comment

Signed-off-by: Bensuperpc <bensuperpc@gmail.com>

* Update math/inv_sqrt.cpp

Co-authored-by: David Leal <halfpacho@gmail.com>

* Add comments

Add comments

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* updating DIRECTORY.md

Co-authored-by: David Leal <halfpacho@gmail.com>
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
2021-09-01 11:20:01 -05:00
..
armstrong_number.cpp formatting source-code for ca70c3097e 2020-06-25 09:51:24 +00:00
binary_exponent.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
binomial_calculate.cpp feat: add program to calculate binomial coefficients (#1448) 2021-02-23 00:51:58 +05:30
check_amicable_pair.cpp formatting source-code for 1d7a73ea58 2020-06-23 19:34:19 +00:00
check_factorial.cpp feat: added check_factorial (#1155) 2020-10-05 08:52:27 -04:00
check_prime.cpp feat: Add count_of_trailing_ciphers_in_factorial_n (#1543) 2021-07-29 11:41:52 -05:00
CMakeLists.txt Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
complex_numbers.cpp formatting source-code for 247301c5b5 2020-07-02 12:48:35 +00:00
double_factorial.cpp formatting source-code for e1b1c71e7c 2020-06-25 18:41:27 +00:00
eulers_totient_function.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
extended_euclid_algorithm.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
factorial.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
fast_power.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
fibonacci_fast.cpp formatting source-code for c7ff9d66f1 2020-06-24 17:14:57 +00:00
fibonacci_large.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
fibonacci_matrix_exponentiation.cpp Nth fibonacci number using matrix exponentiation (#1215) 2021-02-05 15:12:13 +05:30
fibonacci_sum.cpp feat: Add ncr mod p code (#1325) 2020-11-22 23:05:01 +05:30
fibonacci.cpp fix: math/fibonacci linter warnings. (#1047) 2020-08-25 18:56:49 -05:00
gcd_iterative_euclidean.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
gcd_of_n_numbers.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
gcd_recursive_euclidean.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
integral_approximation.cpp feat: added integral approximation algorithm (#1485) 2021-04-22 22:11:44 +05:30
inv_sqrt.cpp feat: Add inverse inverse root functions (#1570) 2021-09-01 11:20:01 -05:00
large_factorial.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
large_number.h make multiplication 64-bit 2020-06-22 16:21:57 -04:00
largest_power.cpp feat: largest_power (#1406) 2020-11-25 04:18:50 -05:00
lcm_sum.cpp feat: Add ncr mod p code (#1325) 2020-11-22 23:05:01 +05:30
least_common_multiple.cpp fix: Integer overflow of least_common_multiple. (#970) 2020-07-22 08:01:06 -04:00
linear_recurrence_matrix.cpp feat: Solving linear recurrence using Matrix Exponentiation (with examples). (#1463) 2021-03-17 23:57:51 +05:30
magic_number.cpp Update math/magic_number.cpp 2020-10-27 06:33:29 +05:30
miller_rabin.cpp formatting source-code for a48d05fb62 2020-06-21 17:42:09 +00:00
modular_division.cpp clang-format and clang-tidy fixes for 7293e15a 2021-01-18 10:45:57 +00:00
modular_exponentiation.cpp feat: Add modular_exponentiation.cpp (#1276) 2020-10-30 01:52:32 +05:30
modular_inverse_fermat_little_theorem.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
n_bonacci.cpp feat: Add n_bonacci.cpp in math section (#1544) 2021-07-29 12:29:27 -05:00
n_choose_r.cpp feat: Add ncr mod p code (#1325) 2020-11-22 23:05:01 +05:30
ncr_modulo_p.cpp feat: Add ncr mod p code (#1325) 2020-11-22 23:05:01 +05:30
number_of_positive_divisors.cpp fix, test: simplification and tests for number_of_positive_divisors (#975) 2020-07-24 22:59:49 -04:00
power_for_huge_numbers.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
power_of_two.cpp Create power_of_two.cpp (#1315) 2021-02-12 10:14:01 +05:30
prime_factorization.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
prime_numbers.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
primes_up_to_billion.cpp fix: integer overflow due to multiplication fixed (#886) 2020-06-23 23:50:45 +05:30
README.md Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
realtime_stats.cpp fix: Various LGTM fixes 2020-06-23 15:13:28 -05:00
sieve_of_eratosthenes.cpp fix, test: Refactor of sieve_of_eratosthenes (#969) 2020-07-23 07:50:38 -04:00
sqrt_double.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
string_fibonacci.cpp Major rework to improve code quality and add automation checks (#805) 2020-06-19 21:34:56 +05:30
sum_of_binomial_coefficient.cpp feat: Add ncr mod p code (#1325) 2020-11-22 23:05:01 +05:30
sum_of_digits.cpp formatting source-code for 9bc80876e8 2020-06-22 12:05:13 +00:00
vector_cross_product.cpp cross product of two vectors (#1292) 2021-02-05 15:13:45 +05:30

Prime factorization

Prime Factorization is a very important and useful technique to factorize any number into its prime factors. It has various applications in the field of number theory.

The method of prime factorization involves two function calls. First: Calculating all the prime number up till a certain range using the standard Sieve of Eratosthenes.

Second: Using the prime numbers to reduce the the given number and thus find all its prime factors.

The complexity of the solution involves approx. O(n logn) in calculating sieve of eratosthenes O(log n) in calculating the prime factors of the number. So in total approx. O(n logn).

Requirements: For compile you need the compiler flag for C++ 11