From 9de92ea09272ebcf54c47bc990b993ae98764a6c Mon Sep 17 00:00:00 2001
From: Ashwin Maran <amaran@wisc.edu>
Date: Sun, 18 Feb 2024 16:51:18 -0600
Subject: [PATCH] Upload New File
---
.../13_Strings/Lec_13_Strings_Worksheet.ipynb | 322 ++++++++++++++++++
1 file changed, 322 insertions(+)
create mode 100644 s24/AmFam_Ashwin/13_Strings/Lec_13_Strings_Worksheet.ipynb
diff --git a/s24/AmFam_Ashwin/13_Strings/Lec_13_Strings_Worksheet.ipynb b/s24/AmFam_Ashwin/13_Strings/Lec_13_Strings_Worksheet.ipynb
new file mode 100644
index 0000000..068051e
--- /dev/null
+++ b/s24/AmFam_Ashwin/13_Strings/Lec_13_Strings_Worksheet.ipynb
@@ -0,0 +1,322 @@
+{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Problem 1"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 1,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "True True False\n",
+ "False False False\n",
+ "False True True\n",
+ "True False True\n",
+ "False True True\n"
+ ]
+ }
+ ],
+ "source": [
+ "print(\"a\" < \"z\", \"ax\" < \"ay\", \"abc\" < \"abCd\")\n",
+ "print(\"a\" < \"Z\", \"x2\" < \"x1\", \"zero\" < \"999\")\n",
+ "print(\"x\" < \"x\", \"abcX\" < \"abcY\", \"10\" < \"999\")\n",
+ "print(\"0\" < \"x\", \"abcX\" < \"aBcY\", \"1000\" < \"999\")\n",
+ "print(\"1\" < \"0\", \"abc\" < \"abcd\", \"88888888888\" < \"9\")"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Problem 2 left column"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "DOG\n",
+ "dog\n",
+ "paint\n",
+ " paint\n",
+ "True\n"
+ ]
+ }
+ ],
+ "source": [
+ "print(\"dog\".upper())\n",
+ "print(\"Dog\".lower())\n",
+ "print(\" paint \".strip())\n",
+ "print(\" paint \".rstrip())\n",
+ "print(\"abcd\".startswith(\"ab\"))"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Problem 2 right column"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "False\n",
+ "0\n",
+ "2\n",
+ "-1\n",
+ "2\n"
+ ]
+ }
+ ],
+ "source": [
+ "print(\"abcd\".endswith(\"bc\"))\n",
+ "print(\"abcd\".find(\"a\"))\n",
+ "print(\"abcd\".find(\"c\"))\n",
+ "print(\"abcd\".find(\"B\"))\n",
+ "print(\"Python\".find(\"th\"))"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Problem 3"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 4,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "a\n",
+ "c\n",
+ "c\n",
+ "o\n",
+ "3\n",
+ "=\n",
+ "um\n"
+ ]
+ }
+ ],
+ "source": [
+ "msg = \"Hello\"\n",
+ "x = \"num= 13\" # let's assume there is a space after the =\n",
+ "\n",
+ "print(\"abc\"[0])\n",
+ "print(\"abc\"[2])\n",
+ "print(\"abc\"[-1])\n",
+ "\n",
+ "print(msg[4])\n",
+ "# print(msg[5]) # will cause error - see following cells\n",
+ "# print(msg[len(msg)]) # will cause error - see following cells\n",
+ "\n",
+ "print(x[len(x) - 1])\n",
+ "print(x[3])\n",
+ "print(x[1] + x[2])"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 5,
+ "metadata": {},
+ "outputs": [
+ {
+ "ename": "IndexError",
+ "evalue": "string index out of range",
+ "output_type": "error",
+ "traceback": [
+ "\u001b[1;31m---------------------------------------------------------------------\u001b[0m",
+ "\u001b[1;31mIndexError\u001b[0m Traceback (most recent call last)",
+ "Cell \u001b[1;32mIn[5], line 1\u001b[0m\n\u001b[1;32m----> 1\u001b[0m \u001b[38;5;28mprint\u001b[39m(msg[\u001b[38;5;241m5\u001b[39m])\n",
+ "\u001b[1;31mIndexError\u001b[0m: string index out of range"
+ ]
+ }
+ ],
+ "source": [
+ "print(msg[5])"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 6,
+ "metadata": {},
+ "outputs": [
+ {
+ "ename": "IndexError",
+ "evalue": "string index out of range",
+ "output_type": "error",
+ "traceback": [
+ "\u001b[1;31m---------------------------------------------------------------------\u001b[0m",
+ "\u001b[1;31mIndexError\u001b[0m Traceback (most recent call last)",
+ "Cell \u001b[1;32mIn[6], line 1\u001b[0m\n\u001b[1;32m----> 1\u001b[0m \u001b[38;5;28mprint\u001b[39m(msg[\u001b[38;5;28mlen\u001b[39m(msg)])\n",
+ "\u001b[1;31mIndexError\u001b[0m: string index out of range"
+ ]
+ }
+ ],
+ "source": [
+ "print(msg[len(msg)])"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Problem 4"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 7,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "ab\n",
+ "cde\n",
+ "cde\n",
+ "He\n",
+ "llo\n",
+ "lo\n",
+ "Hell\n",
+ "Hello\n",
+ "ello\n"
+ ]
+ }
+ ],
+ "source": [
+ "p = \"= \" \n",
+ "\n",
+ "print(\"abcde\"[0:2])\n",
+ "print(\"abcde\"[2:6])\n",
+ "print(\"abcde\"[2:9])\n",
+ "\n",
+ "print(msg[:2])\n",
+ "print(msg[2:])\n",
+ "print(msg[-2:])\n",
+ "\n",
+ "print(msg[:msg.find('=')])\n",
+ "print(msg[msg.find(' ')+1:])\n",
+ "print(msg[msg.find(p)+len(p):])"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Problem 5"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 8,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "301\n",
+ "301\n",
+ "301\n",
+ "3.0.1.\n",
+ "103\n"
+ ]
+ }
+ ],
+ "source": [
+ "msg = \"301\"\n",
+ "A = \"\"\n",
+ "B = \"\"\n",
+ "\n",
+ "for character in msg:\n",
+ " print(msg)\n",
+ " A = A + character + \".\"\n",
+ " B = character + B\n",
+ "\n",
+ "# What is in A afterwards?\n",
+ "print(A)\n",
+ "\n",
+ "# What is in B afterwards?\n",
+ "print(B)"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Problem 6"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 9,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "P\n",
+ "PY\n",
+ "PYT\n",
+ "PYTH\n",
+ "PYTHO\n",
+ "PYTHON\n"
+ ]
+ }
+ ],
+ "source": [
+ "s = \"PYTHON\"\n",
+ "for i in range(len(s)):\n",
+ " print(s[:i+1])"
+ ]
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 3 (ipykernel)",
+ "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": "3.11.7"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}
--
GitLab