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ENG: A module that allows you to solve quadratic and linear equations. | RU: Модуль, позволяющий решать квадратные и линейные уравнения.

Project description

equation_maths_helper

ENG

A module that allows you to solve quadratic and linear equations.

How to use?

Installing and importing

First, install the equation_maths_helper module using the pip package manager.

pip install equation_maths_helper

After that, you can import it:

import equation_maths_helper

For convenience, we recommend importing all necessary methods from the module at once.

from equation_maths_helper import linear_one_variable, linear_two_variables, quadratic

The linear_one_variable method

The linear_one_variable method allows you to solve linear equations with a single variable.

The method accepts the coefficients a and b from the formula ax + b = 0. It also has an additional solution parameter, which is responsible for outputting a step-by-step solution to the console. By default it is set to False. The method returns False if it fails (there are no roots), the root of the equation, or True if the root is any number.

Example of using the method:

from equation_maths_helper import linear_one_variable
equation_answer = linear_one_variable(a=1, b=1, solution=True)
print(equation_answer)

Output the solution to the console:

Root: x = -b / a = x = 1 / 1 = 1.0.
1.0

The linear_two_variables method

The linear_two_variables method allows you to solve systems of linear equations with two variables.

The method takes the coefficients a1, b1, c1 and a2, b2, c2 from the formula

{a1 * x + b1 * y = c1, 
{a2 * x + b2 * y = c2.

and an optional argument solution, which is responsible for displaying the solution on the console. By default, it is set to False. Returns False in case of failure, a tuple with the roots of the equation (x and y), or True(any root) in case of success.

An example of using the method:

from equation_maths_helper import linear_two_variables
equation_answer = linear_two_variables(a1=1, b1=-3, c1=11, a2=2, b2=4, c2=-8, solution=True)
print(equation_answer)

Output the solution to the console:

Equating the equation, by multiplying it by 2.0:
Old: 1.0x + -3.0y = 11.0. New: 2.0x + -6.0y = 22.0.
Old: 2.0x + 4.0y = -8.0. New: 4.0x + 8.0y = -16.0.
A new system of linear equations:
-2.0x - -6.0y = -22.0,
2.0x + 4.0y = -8.0.
Adding the systems. Result: 10.0y = -30.0
Root y: y = -b / a = 30.0 / -10.0 = -3.0.
Substituting 'y' into the equation 2.0x + -6.0y = 22.0:
2.0x + (-6.0 * -3.0) = 22.0.
Root x: x = -b / a = 4.0 / 2.0 = 2.0.
(2.0, -3.0)

The quadratic method

The quadratic method allows you to solve quadratic equations.

The method accepts the coefficients a, b, and c from the formula a(x ** 2) + bx + c = 0. It also has an additional parameter solution, which is responsible for displaying the step-by-step solution on the console. By default, it is set to False. The method returns False if it fails (no roots) or a tuple with 1 or 2 roots of the equation.

An example of using the method:

from equation_maths_helper import quadratic
equation_answer = quadratic(a=1, b=1, c=1, solution=True)
print(equation_answer)

Output of the solution to the console:

Discriminant: (b ** 2) - 4 * a * c = (-5 ** 2) - 4 * 1 * 6 = 1.
First root: x1 = (-b - sqrt(d)) / 2 * a = (5 - 1.0) / 2 * 1 = 2.0.
Second root: x2 = (-b + sqrt(d)) / 2 * a = (5 + 1.0) / 2 * 1 = 3.0.
Roots: 2.0, 3.0.
(2.0, 3.0)

RU

Модуль, позволяющий решать квадратные и линейные уравнения.

Как использовать?

Установка и импорт

Первым делом установите модуль equation_maths_helper через менеджер пакетов pip.

pip install equation_maths_helper

После этого вы сможете его импортировать:

import equation_maths_helper

Для удобства рекомендуем сразу импортировать все необходимые методы из модуля.

from equation_maths_helper import linear_one_variable, linear_two_variables, quadratic

Метод linear_one_variable

Метод linear_one_variable позволяет решать линейные уравнения с одной переменной.

Метод принимает коэффициенты a и b из формулы ax + b = 0. Также у него есть дополнитеьный параметр solution, который отвечает за вывод пошагового решения на консоль. По умолчанию он равен False. Метод возвращает False в случае неудачи(нет корней), корень уравнения или True, если корень любое число.

Пример использования метода:

from equation_maths_helper import linear_one_variable
equation_answer = linear_one_variable(a=1, b=1, solution=True)
print(equation_answer)

Вывод решения на консоль:

Root:  x = -b / a = x = 1 / 1 = 1.0.
1.0

Метод linear_two_variables

Метод linear_two_variables позволяет решать системы линейных уравнений с двумя переменными.

Метод принимает коээфициенты a1, b1, c1 and a2, b2, c2 из формулы

{a1 * x + b1 * y = c1, 
{a2 * x + b2 * y = c2.

и необязательный аргумент solution, который отвечает за вывод решения на консоль. По умолчанию он равен False. Возвращает False в случае неудачи, кортеж с корнями уравнения(x и y) или True(любой корень) в случае успеха.

Пример использования метода:

from equation_maths_helper import linear_two_variables
equation_answer = linear_two_variables(a1=1, b1=-3, c1=11, a2=2, b2=4, c2=-8, solution=True)
print(equation_answer)

Вывод решения на консоль:

Equating the equation, by multiplying it by 2.0:
Old: 1.0x + -3.0y = 11.0. New: 2.0x + -6.0y = 22.0.
Old: 2.0x + 4.0y = -8.0. New: 4.0x + 8.0y = -16.0.
A new system of linear equations:
-2.0x - -6.0y = -22.0,
2.0x + 4.0y = -8.0.
Adding the systems. Result: 10.0y = -30.0
Root y: y = -b / a = 30.0 / -10.0 = -3.0.
Substituting 'y' into the equation 2.0x + -6.0y = 22.0:
2.0x + (-6.0 * -3.0) = 22.0.
Root x: x = -b / a = 4.0 / 2.0 = 2.0.
(2.0, -3.0)

Метод quadratic

Метод quadratic позваоляет решать квадратные уравнения.

Метод принимает коэффициенты a, b и c из формулы a(x ** 2) + bx + c = 0. У него тоже есть дополнитеьный параметр solution, который отвечает за вывод пошагового решения на консоль. По умолчанию он равен False. Метод возвращает False в случае неудачи(нет корней) или кортеж с 1 или 2 корнями уравнения.

Пример использования метода:

from equation_maths_helper import quadratic
equation_answer = quadratic(a=1, b=1, c=1, solution=True)
print(equation_answer)

Вывод решения на консоль:

Discriminant: (b ** 2) - 4 * a * c = (-5 ** 2) - 4 * 1 * 6 = 1.
First root: x1 = (-b - sqrt(d)) / 2 * a = (5 - 1.0) / 2 * 1 = 2.0.
Second root: x2 = (-b + sqrt(d)) / 2 * a = (5 + 1.0) / 2 * 1 = 3.0.
Roots: 2.0, 3.0.
(2.0, 3.0)

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