Educational numerical methods library (roots and integration)
Project description
numlib
Небольшая библиотека на Python для численных методов:
- Поиск корней: метод бисекции, метод Ньютона
- Численное интегрирование: трапеции, Симпсон
Требования
- Python >= 3.9
Установка (локально, как пакет)
Из корня проекта:
python -m pip install -e .
Установка зависимостей для разработки (тесты)
python -m pip install -e ".[dev]"
Запуск тестов
pytest -q
Примеры использования
Корни
import math
from numlib import bisection, newton
f = lambda x: x*x - 2
r1 = bisection(f, 1.0, 2.0)
print(r1.root, r1.converged)
g = lambda x: math.cos(x) - x
dg = lambda x: -math.sin(x) - 1
r2 = newton(g, dg, 1.0)
print(r2.root, r2.converged)
Интегрирование
import math
from numlib import trapezoidal, simpson
f = lambda x: math.sin(x)
print(trapezoidal(f, 0.0, math.pi, n=10000).value)
print(simpson(f, 0.0, math.pi, n=2000).value)
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