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‎Book1_Ch06_Python_Codes/Bk1_Ch06_01.ipynb

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{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "4ddcd67d-36ae-41e6-b70c-134ebbd81efa",
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"metadata": {},
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"source": [
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"Chapter 06\n",
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"# 加法\n",
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"Book_1《编程不难》 | 鸢尾花书：从加减乘除到机器学习 "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"id": "0bfca160-0126-4006-8fcb-2a862f32fa04",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"30.0\n"
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]
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}
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],
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"source": [
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"# 数值加法\n",
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"a = 10 # 整数\n",
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"b = 20.0 # 浮点数\n",
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"c = a + b # 浮点数\n",
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"print(c) "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"id": "8b3afba9-c268-4eae-b5d7-7a485caa9d76",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"1020.0\n"
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]
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}
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],
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"source": [
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"# 字符串拼接\n",
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"str_a = \"10\" # str(a)\n",
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"str_b = \"20.0\" # str(b)\n",
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"str_c = str_a + str_b\n",
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"print(str_c) "
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3 (ipykernel)",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.10.9"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}

‎Book1_Ch06_Python_Codes/Bk1_Ch06_02.ipynb

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{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "3bf8e892-7dcf-41cf-bbc5-bac98bb95ca2",
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"metadata": {},
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"source": [
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"Chapter 06\n",
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"# 乘法\n",
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"Book_1《编程不难》 | 鸢尾花书：从加减乘除到机器学习 "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"id": "c0e0bb69-0e60-4910-9af3-5b26e8cf384f",
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"metadata": {},
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"outputs": [],
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"source": [
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"# 数值乘法\n",
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"a = 10 # 整数\n",
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"b = 20.0 # 浮点数"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"id": "d87536fb-2bbd-4ef9-9e61-89a5477a2fd9",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"200.0\n"
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]
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}
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],
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"source": [
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"c = a * b # 浮点数\n",
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"print(c) "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 3,
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"id": "4028934d-7677-47b6-960d-fdbaa2770867",
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"metadata": {},
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"outputs": [],
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"source": [
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"# 字符串复制\n",
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"str_a = \"10\" # str(a)\n",
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"str_b = \"20.0\" # str(b)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 4,
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"id": "182310c7-a6c0-4298-bb9d-0f7f6ff38b54",
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"metadata": {},
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"outputs": [],
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"source": [
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"str_c = str_a * 3\n",
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"str_d = str_b * 2"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 5,
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"id": "ad0d5de5-43ee-4999-a81b-940974924f7e",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"101010\n",
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"20.020.0\n"
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]
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}
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],
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"source": [
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"print(str_c) \n",
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"print(str_d) "
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3 (ipykernel)",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.10.9"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}

‎Book1_Ch06_Python_Codes/Bk1_Ch06_03.ipynb

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{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "d8392c8f-74ae-4612-b2fc-a94a8b2ad16b",
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"metadata": {},
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"source": [
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"Chapter 06\n",
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"# 比较运算符\n",
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"Book_1《编程不难》 | 鸢尾花书：从加减乘除到机器学习 "
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]
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},
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{
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"cell_type": "code",
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"execution_count": 1,
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"id": "24ed9226-9179-4b89-9a86-002c104f5bfe",
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"metadata": {},
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"outputs": [],
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"source": [
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"x = 5\n",
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"y = 3"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"id": "8b56b84e-1edf-4bd7-934d-d5baface282b",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"False\n",
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"True\n",
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"True\n",
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"False\n",
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"False\n"
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]
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}
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],
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"source": [
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"print(x == y) # False\n",
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"print(x == 5) # True\n",
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"print(x != y) # True\n",
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"print(x != 5) # False\n",
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"print(x != 5.0) # False"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 3,
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"id": "3de552a2-f2c8-4d73-9c7e-d4d295a96341",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"True\n",
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"False\n",
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"True\n",
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"True\n"
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]
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}
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],
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"source": [
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"print(x > y) # True\n",
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"print(x > 10) # False\n",
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"print(x >= y) # True\n",
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"print(x >= 5) # True"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 4,
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"id": "2cdde88d-0452-4dfa-92e5-1551f2be7089",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"False\n",
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"True\n",
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"False\n",
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"True\n"
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]
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}
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],
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"source": [
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"print(x < y) # False\n",
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"print(x < 10) # True\n",
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"print(x <= y) # False\n",
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"print(x <= 5) # True"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3 (ipykernel)",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.10.9"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}

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