{
  "cells": [
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "%matplotlib inline"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "# Decisions, loops\n\nDecision making\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "var = 100\nif var == 100:\n    print(\"value of expression is 100\")"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "While loop\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "count = 0\nwhile count < 9:\n    print(\"The count is: \", count)\n    count = count + 1"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "While loop with else statement\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "count = 0\nwhile count < 5:\n    print(count, \" is  less than 5\")\n    count = count + 1\nelse:\n    print(count, \" is not less than 5\")"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "For loop\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "for letter in \"Python\":  # First Example\n    print(\"Current Letter :\", letter)\n\nfruits = [\"banana\", \"apple\", \"mango\"]\nfor fruit in fruits:  # Second Example\n    print(\"Current fruit :\", fruit)"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "Iterating by sequence index\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "fruits = [\"banana\", \"apple\", \"mango\"]\nfor index in range(len(fruits)):\n    print(\"Current fruit :\", fruits[index])"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "For loop with else\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "for num in range(10, 20):  # to iterate between 10 to 20\n    for idx in range(2, num):  # to iterate on the factors of the number\n        if num % idx == 0:  # to determine the first factor\n            jdx = num / idx  # to calculate the second factor\n            print(\"%d equals %d * %d\" % (num, idx, jdx))\n            break  # to move to the next number, the #first FOR\n    else:  # else part of the loop\n        print(num, \"is a prime number\")\n        break"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "Nested loops\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "val = 2\nwhile val < 100:\n    val2 = 2\n    while val2 <= (val / val2):\n        if not (val % val2):\n            break\n        val2 = val2 + 1\n    if val2 > val / val2:\n        print(val, \" is prime\")\n    val = val + 1"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "Break statement\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "for letter in \"Python\":  # First Example\n    if letter == \"h\":\n        break\n    print(\"Current Letter :\", letter)\n\nvar = 10  # Second Example\nwhile var > 0:\n    print(\"Current variable value :\", var)\n    var = var - 1\n    if var == 5:\n        break"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "Continue statement\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "for letter in \"Python\":  # First Example\n    if letter == \"h\":\n        continue\n    print(\"Current Letter :\", letter)\n\nvar = 10  # Second Example\nwhile var > 0:\n    var = var - 1\n    if var == 5:\n        continue\n    print(\"Current variable value :\", var)"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "Pass statement\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "for letter in \"Python\":\n    if letter == \"h\":\n        pass\n        print(\"This is pass block\")\n    print(\"Current Letter :\", letter)"
      ]
    }
  ],
  "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": "3.8.10"
    }
  },
  "nbformat": 4,
  "nbformat_minor": 0
}