Матвеев Данил 13ИП212

Practic/Лекция 2/lec2_13ip212.ipynb

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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "c324bbd3",
+   "metadata": {},
+   "source": [
+    "# Решения задач по Python"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "04b82e13",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Некорректная строка пропущена: # swallow-speeds.txt\n",
+      "Некорректная строка пропущена: # Airspeed velocities of unladen African swallow (m.s-1)\n",
+      "Некорректная строка пропущена: # Invalid data is indicated by #\n",
+      "Некорректная строка пропущена: \n",
+      "Некорректная строка пропущена: 99.9 #\n",
+      "Некорректная строка пропущена: 0.0 #\n",
+      "Средняя скорость: 10.31 м/с\n"
+     ]
+    }
+   ],
+   "source": [
+    "\n",
+    "# Задача 1: Средняя скорость африканской ласточки с обработкой исключений\n",
+    "\n",
+    "def calculate_average_speed(filename):\n",
+    "    try:\n",
+    "        with open(filename, 'r') as file:\n",
+    "            speeds = []\n",
+    "            for line in file:\n",
+    "                try:\n",
+    "                    speed = float(line.strip())\n",
+    "                    speeds.append(speed)\n",
+    "                except ValueError:\n",
+    "                    print(f\"Некорректная строка пропущена: {line.strip()}\")\n",
+    "            if speeds:\n",
+    "                return sum(speeds) / len(speeds)\n",
+    "            else:\n",
+    "                raise ValueError(\"Файл не содержит корректных данных.\")\n",
+    "    except FileNotFoundError:\n",
+    "        print(f\"Файл {filename} не найден.\")\n",
+    "    except Exception as e:\n",
+    "        print(f\"Произошла ошибка: {e}\")\n",
+    "\n",
+    "# Пример вызова функции\n",
+    "filename = 'swallow-speeds.txt'  # Убедитесь, что файл находится в текущей директории\n",
+    "average_speed = calculate_average_speed(filename)\n",
+    "if average_speed is not None:\n",
+    "    print(f\"Средняя скорость: {average_speed:.2f} м/с\")\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "a6b52039",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "(-2 3.5)\n",
+      "(4 0.5 -2)\n",
+      "Ошибка: Вектор содержит недопустимые элементы.\n",
+      "None\n"
+     ]
+    }
+   ],
+   "source": [
+    "\n",
+    "# Задача 2: Проверка на действительные числа в векторе\n",
+    "\n",
+    "def str_vector(vector):\n",
+    "    try:\n",
+    "        if not all(isinstance(x, (int, float)) for x in vector):\n",
+    "            raise TypeError(\"Вектор содержит недопустимые элементы.\")\n",
+    "        return f\"({' '.join(map(str, vector))})\"\n",
+    "    except TypeError as e:\n",
+    "        print(f\"Ошибка: {e}\")\n",
+    "\n",
+    "# Пример вызова функции\n",
+    "print(str_vector([-2, 3.5]))  # Допустимый вектор\n",
+    "print(str_vector((4, 0.5, -2)))  # Допустимый вектор\n",
+    "print(str_vector([1, 'a', 3]))  # Недопустимый вектор\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "9fed66f2",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "8\n",
+      "Ошибка: Определение 0^0 не существует.\n"
+     ]
+    }
+   ],
+   "source": [
+    "\n",
+    "# Задача 3: Поведение 0^0 с генерацией исключения\n",
+    "\n",
+    "def powr(a, b):\n",
+    "    if a == 0 and b == 0:\n",
+    "        raise ValueError(\"Определение 0^0 не существует.\")\n",
+    "    return a ** b\n",
+    "\n",
+    "# Пример вызова функции\n",
+    "try:\n",
+    "    print(powr(2, 3))  # 8\n",
+    "    print(powr(0, 0))  # Должно вызвать исключение\n",
+    "except ValueError as e:\n",
+    "    print(f\"Ошибка: {e}\")\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.0"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}

Practic/Лекция 2/sonnet18.txt

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+ыаыавфыыфвф

Practic/Лекция 2/swallow-speeds.txt

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+# swallow-speeds.txt
+# Airspeed velocities of unladen African swallow (m.s-1)
+# Invalid data is indicated by #
+
+10.1
+12.1
+9.8
+8.9
+10.3
+9.2
+9.6
+9.2
+10.1
+11.7
+12.0
+10.0
+99.9 #
+8.8
+11.9
+12.0
+0.0 #
+9.9
+9.8
+10.2

Practic/Практическая_04/PR4_13ip212.ipynb

@@ -0,0 +1,121 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "438b5252",
+   "metadata": {},
+   "source": [
+    "\n",
+    "# Решение задач\n",
+    "\n",
+    "## Задание 1\n",
+    "\n",
+    "1. Изменить базовый класс `BankAccount` для проверки номера счета на соответствие алгоритму Луна.\n",
+    "2. Изменить класс `CurrentAccount` для реализации свободного овердрафта с установкой лимита.\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "01b1e16d",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "def luhn_check(account_number):\n",
+    "    \"\"\"Проверка номера счета по алгоритму Луна.\"\"\"\n",
+    "    digits = [int(d) for d in str(account_number)][::-1]\n",
+    "    for i in range(len(digits)):\n",
+    "        if i % 2 == 1:\n",
+    "            digits[i] *= 2\n",
+    "            if digits[i] > 9:\n",
+    "                digits[i] -= 9\n",
+    "    return sum(digits) % 10 == 0\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "f0056c4e",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "class BankAccount:\n",
+    "    def __init__(self, account_number, balance=0):\n",
+    "        if not luhn_check(account_number):\n",
+    "            raise ValueError(\"Некорректный номер счета!\")\n",
+    "        self.account_number = account_number\n",
+    "        self.balance = balance\n",
+    "\n",
+    "    def deposit(self, amount):\n",
+    "        if amount <= 0:\n",
+    "            raise ValueError(\"Сумма депозита должна быть положительной.\")\n",
+    "        self.balance += amount\n",
+    "\n",
+    "    def withdraw(self, amount):\n",
+    "        if amount > self.balance:\n",
+    "            raise ValueError(\"Недостаточно средств на счете.\")\n",
+    "        self.balance -= amount\n",
+    "\n",
+    "    def __str__(self):\n",
+    "        return f\"Счет №{self.account_number}, Баланс: {self.balance}\"\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c304b632",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "class CurrentAccount(BankAccount):\n",
+    "    def __init__(self, account_number, balance=0, overdraft_limit=0):\n",
+    "        super().__init__(account_number, balance)\n",
+    "        self.overdraft_limit = overdraft_limit\n",
+    "\n",
+    "    def withdraw(self, amount):\n",
+    "        if amount > self.balance + self.overdraft_limit:\n",
+    "            raise ValueError(\"Превышен лимит овердрафта.\")\n",
+    "        self.balance -= amount\n",
+    "\n",
+    "    def __str__(self):\n",
+    "        return f\"Счет №{self.account_number}, Баланс: {self.balance}, Лимит овердрафта: {self.overdraft_limit}\"\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ba1e59dc",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "# Пример использования\n",
+    "\n",
+    "try:\n",
+    "    acc = BankAccount(\"79927398713\", 1000)  # Корректный номер счета\n",
+    "    print(acc)\n",
+    "    acc.deposit(500)\n",
+    "    print(acc)\n",
+    "    acc.withdraw(200)\n",
+    "    print(acc)\n",
+    "except ValueError as e:\n",
+    "    print(e)\n",
+    "\n",
+    "try:\n",
+    "    current_acc = CurrentAccount(\"79927398713\", 500, 300)  # Корректный номер счета\n",
+    "    print(current_acc)\n",
+    "    current_acc.withdraw(700)  # В пределах лимита\n",
+    "    print(current_acc)\n",
+    "    current_acc.withdraw(200)  # Превышение лимита\n",
+    "except ValueError as e:\n",
+    "    print(e)\n"
+   ]
+  }
+ ],
+ "metadata": {},
+ "nbformat": 4,
+ "nbformat_minor": 5
+}

Practic/Практическая_08/PR8_13ip212.ipynb

@@ -0,0 +1,80 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "9d9856f9",
+   "metadata": {},
+   "source": [
+    "\n",
+    "# Практическая работа: Дискретные преобразования Фурье\n",
+    "\n",
+    "## Задание\n",
+    "Сравнить скорость выполнения алгоритма `np.fft.fft` из библиотеки NumPy и непосредственной (собственной) реализации формулы.\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "4c4f797c",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Сравнение скорости выполнения:\n"
+     ]
+    }
+   ],
+   "source": [
+    "\n",
+    "import numpy as np\n",
+    "\n",
+    "# Размер данных\n",
+    "n = 1024\n",
+    "\n",
+    "# Случайные значения функции\n",
+    "data = np.random.random(n)\n",
+    "\n",
+    "# Собственная реализация дискретного преобразования Фурье\n",
+    "def dft_manual(x):\n",
+    "    n = len(x)\n",
+    "    m = np.arange(n)\n",
+    "    k = m.reshape((n, 1))\n",
+    "    w = np.exp(-2j * np.pi * k * m / n)\n",
+    "    return np.dot(w, x)\n",
+    "\n",
+    "# Сравнение скорости выполнения\n",
+    "print(\"Сравнение скорости выполнения:\")\n",
+    "\n",
+    "# Собственная реализация\n",
+    "%timeit dft_manual(data)\n",
+    "\n",
+    "# NumPy FFT\n",
+    "%timeit np.fft.fft(data)\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.0"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}