adding book

1 files changed, 977 insertions, 0 deletions

diff --git a/Programming_With_C/chapter11.ipynb b/Programming_With_C/chapter11.ipynb
new file mode 100755
index 00000000..d858cd07
--- /dev/null
+++ b/Programming_With_C/chapter11.ipynb
@@ -0,0 +1,977 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:81f953770b0acac35782d6d61b5968cf0c7681b2e047ca75cfe8abd7244d5bab"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h1>Chapter 11: Pointers<h1>"
+     ]
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.1, Page 11.2<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "\n",
+      "u,v=[3],[]\n",
+      "pu=u\n",
+      "v=pu\n",
+      "pv=v\n",
+      "\n",
+      "print \"u=\",u[0],\n",
+      "print \"&u=\",id(u),\n",
+      "print \"pu=\",id(u),\n",
+      "print \"*pu\",pu[0]\n",
+      "\n",
+      "print \"v=\",v[0],\n",
+      "print \"&v=\",id(v),\n",
+      "print \"pv=\",id(v),\n",
+      "print \"*pv\",pv[0]\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "u= 3 &u= 56575840 pu= 56575840 *pu 3\n",
+        "v= 3 &v= 56575840 pv= 56575840 *pv 3\n"
+       ]
+      }
+     ],
+     "prompt_number": 11
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.2, Page number: 11.3<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "v=[3]\n",
+      "u1=2*(v[0]+5)\n",
+      "pv=v\n",
+      "u2=2*(pv[0]+5)\n",
+      "\n",
+      "print \"u1=%d u2=%d\" %(u1,u2)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "u1=16 u2=16\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.3, Page munber: 11.4<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "v=[3]\n",
+      "pv=v\n",
+      "print \"*pv=%d  v=%d\" %(pv[0],v[0])\n",
+      "\n",
+      "pv[0]=0\n",
+      "print \"*pv=%d  v=%d\" %(pv[0],v[0])"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "*pv=3  v=3\n",
+        "*pv=0  v=0\n"
+       ]
+      }
+     ],
+     "prompt_number": 13
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.7, Page number: 11.6<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "def funct1(u,v):\n",
+      "    u=0\n",
+      "    v=0\n",
+      "    print \"Within funct1        :   u=%d    v=%d\" %(u,v)\n",
+      "    return\n",
+      "\n",
+      "def funct2(u,v):\n",
+      "    u[0]=0\n",
+      "    v[0]=0\n",
+      "    print \"Within funct2        :  *pu=%d  *pv=%d\" %(u[0],v[0])\n",
+      "    return\n",
+      "\n",
+      "u=[1]\n",
+      "v=[3]\n",
+      "\n",
+      "print \"Before calling funct1:   u=%d    v=%d\" %(u[0],v[0])\n",
+      "funct1(u[0],v[0])\n",
+      "print \"After calling funct1 :   u=%d    v=%d\" %(u[0],v[0])\n",
+      "\n",
+      "print \"Before calling funct2:   u=%d    v=%d\" %(u[0],v[0])\n",
+      "funct2(u,v)\n",
+      "print \"After calling funct2 :   u=%d    v=%d\" %(u[0],v[0])"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Before calling funct1:   u=1    v=3\n",
+        "Within funct1        :   u=0    v=0\n",
+        "After calling funct1 :   u=1    v=3\n",
+        "Before calling funct2:   u=1    v=3\n",
+        "Within funct2        :  *pu=0  *pv=0\n",
+        "After calling funct2 :   u=0    v=0\n"
+       ]
+      }
+     ],
+     "prompt_number": 14
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.8, Page number: 11.8<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "\n",
+      "def scan_line(line,pv,pc,pd,pw,po):\n",
+      "\n",
+      "    for c in line:\n",
+      "\n",
+      "        if c=='A' or c=='E' or c=='I' or c=='O' or c=='U':\n",
+      "            pv[0]+=1\n",
+      "        elif c>='A' and c<='Z':\n",
+      "            pc[0]+=1\n",
+      "        elif c>='0' and c<='9':\n",
+      "            pd[0]+=1\n",
+      "        elif c==' ' or c=='\\t':\n",
+      "            pw[0]+=1\n",
+      "        else:\n",
+      "            po[0]+=1\n",
+      "\n",
+      "    return\n",
+      "\n",
+      "\n",
+      "vowel,consonants,digits,whitespc,other=[0],[0],[0],[0],[0]\n",
+      "line=\"Personal computers with memories in excess of 4096 KB are now quite common.\"\n",
+      "line=line.upper()\n",
+      "scan_line(line,vowel,consonants,digits,whitespc,other)\n",
+      "print \"\\n\\n\"\n",
+      "print \"No. of vowels                : \",vowel[0]\n",
+      "print \"No. of consonants            : \",consonants[0]\n",
+      "print \"No. of digits                : \",digits[0]\n",
+      "print \"No. of whitespace characters : \",whitespc[0]\n",
+      "print \"No. of other characters      : \",other[0]"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "\n",
+        "\n",
+        "No. of vowels                :  23\n",
+        "No. of consonants            :  35\n",
+        "No. of digits                :  4\n",
+        "No. of whitespace characters :  12\n",
+        "No. of other characters      :  1\n"
+       ]
+      }
+     ],
+     "prompt_number": 15
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.12, Page number: 11.15<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "x=[10,11,12,13,14,15,16,17,18,19]\n",
+      "\n",
+      "for i in range(0,10):\n",
+      "    print \"i=%d   x[i]=%d   *(x+1)=%d\" %(i,x[i],x[i]),\n",
+      "    print \"   &x[i]=\",id(x[i]),\n",
+      "    print \"   x+i=\",id(x[i])"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "i=0   x[i]=10   *(x+1)=10    &x[i]= 30696620    x+i= 30696620\n",
+        "i=1   x[i]=11   *(x+1)=11    &x[i]= 30696608    x+i= 30696608\n",
+        "i=2   x[i]=12   *(x+1)=12    &x[i]= 30696596    x+i= 30696596\n",
+        "i=3   x[i]=13   *(x+1)=13    &x[i]= 30696584    x+i= 30696584\n",
+        "i=4   x[i]=14   *(x+1)=14    &x[i]= 30696572    x+i= 30696572\n",
+        "i=5   x[i]=15   *(x+1)=15    &x[i]= 30696560    x+i= 30696560\n",
+        "i=6   x[i]=16   *(x+1)=16    &x[i]= 30696548    x+i= 30696548\n",
+        "i=7   x[i]=17   *(x+1)=17    &x[i]= 30696536    x+i= 30696536\n",
+        "i=8   x[i]=18   *(x+1)=18    &x[i]= 30696524    x+i= 30696524\n",
+        "i=9   x[i]=19   *(x+1)=19    &x[i]= 30696512    x+i= 30696512\n"
+       ]
+      }
+     ],
+     "prompt_number": 16
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.14, Page number: 11.17<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "def main():\n",
+      "    global x\n",
+      "    y=\"This string is declared within main\"\n",
+      "    y=list(y)\n",
+      "    x=list(x)\n",
+      "    print x\n",
+      "    print y\n",
+      "\n",
+      "    return\n",
+      "\n",
+      "x=\"This string is declared externally\"\n",
+      "main()\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "['T', 'h', 'i', 's', ' ', 's', 't', 'r', 'i', 'n', 'g', ' ', 'i', 's', ' ', 'd', 'e', 'c', 'l', 'a', 'r', 'e', 'd', ' ', 'e', 'x', 't', 'e', 'r', 'n', 'a', 'l', 'l', 'y']\n",
+        "['T', 'h', 'i', 's', ' ', 's', 't', 'r', 'i', 'n', 'g', ' ', 'i', 's', ' ', 'd', 'e', 'c', 'l', 'a', 'r', 'e', 'd', ' ', 'w', 'i', 't', 'h', 'i', 'n', ' ', 'm', 'a', 'i', 'n']\n"
+       ]
+      }
+     ],
+     "prompt_number": 17
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.16, Page number: 11.19<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "def reorder(x):\n",
+      "    n=len(x)\n",
+      "    for item in range(0,n-1):\n",
+      "        for i in range(item+1,n):\n",
+      "            if x[i]<x[item]:\n",
+      "                temp=x[item]\n",
+      "                x[item]=x[i]\n",
+      "                x[i]=temp\n",
+      "\n",
+      "    return\n",
+      "\n",
+      "n=10\n",
+      "x=[]\n",
+      "\n",
+      "for i in range(0,n):\n",
+      "    inp=i+1\n",
+      "    print \"\\ni=%d x=%d\" %(i+1,inp),\n",
+      "    x.append(inp)\n",
+      "\n",
+      "reorder(x)\n",
+      "\n",
+      "print \"\\n\"\n",
+      "for i in range(0,n):\n",
+      "    print \"i=%d  x=%d\" %(i+1,x[i])\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        "i=1 x=1 \n",
+        "i=2 x=2 \n",
+        "i=3 x=3 \n",
+        "i=4 x=4 \n",
+        "i=5 x=5 \n",
+        "i=6 x=6 \n",
+        "i=7 x=7 \n",
+        "i=8 x=8 \n",
+        "i=9 x=9 \n",
+        "i=10 x=10 \n",
+        "\n",
+        "i=1  x=1\n",
+        "i=2  x=2\n",
+        "i=3  x=3\n",
+        "i=4  x=4\n",
+        "i=5  x=5\n",
+        "i=6  x=6\n",
+        "i=7  x=7\n",
+        "i=8  x=8\n",
+        "i=9  x=9\n",
+        "i=10  x=10\n"
+       ]
+      }
+     ],
+     "prompt_number": 18
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.17, Page number: 11.21<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "i=[4]\n",
+      "i[0]=1\n",
+      "f=0.3\n",
+      "d=0.005\n",
+      "c='*'\n",
+      "\n",
+      "px=i\n",
+      "print 'Values: i=%d f=%f d=%f c=%c \\n' %(i[0],f,d,c)\n",
+      "print 'Addresses: &i=%X &f=%X &d=%X &c=%X \\n' %(id(i[0]),id(f),id(d),id(c))\n",
+      "print 'Pointer Values: px=%X  px+1=%X  px+2=%X  px+3=%X' %(id(px[0]),id(px[0]+1),id(px[0]+2),id(px[0]+3))\n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Values: i=1 f=0.300000 d=0.005000 c=* \n",
+        "\n",
+        "Addresses: &i=1D46518 &f=32BD940 &d=32BD950 &c=1D9F158 \n",
+        "\n",
+        "Pointer Values: px=1D46518  px+1=1D4650C  px+2=1D46500  px+3=1D464F4\n"
+       ]
+      }
+     ],
+     "prompt_number": 19
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.18, Page number: 11.22<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "a=[1,2,3,4,5,6]\n",
+      "\n",
+      "px=a[0]\n",
+      "py=a[5]\n",
+      "\n",
+      "print 'px=%X   py=%X \\n' %(id(px),id(py))\n",
+      "print 'py - px = %X' %(id(py)-id(px))"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "px=1D46518   py=1D464DC \n",
+        "\n",
+        "py - px = -3C\n"
+       ]
+      }
+     ],
+     "prompt_number": 20
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.22, Page number: 11.26<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "def readinput(m,n,i=0):\n",
+      "\n",
+      "    at=[]\n",
+      "    for row in range(0,m):\n",
+      "        temp=[]\n",
+      "        for col in range(0,n):\n",
+      "            t=i\n",
+      "            i+=2\n",
+      "            temp.append(t)\n",
+      "        at.append(temp)\n",
+      "\n",
+      "\n",
+      "    return at\n",
+      "        \n",
+      "def computesum(a,b,m,n):\n",
+      "\n",
+      "    c=[]\n",
+      "\n",
+      "    for row in range(0,m):\n",
+      "        temp=[]\n",
+      "        for col in range(0,n):\n",
+      "            t=a[row][col]+b[row][col]\n",
+      "            temp.append(t)\n",
+      "        c.append(temp)\n",
+      "\n",
+      "    return c\n",
+      "\n",
+      "def writeoutput(c,m,n):\n",
+      "\n",
+      "    for row in range(0,m):\n",
+      "        for col in range(0,n):\n",
+      "            print \"%4d\" %(c[row][col]),\n",
+      "        print\n",
+      "\n",
+      "    return\n",
+      "\n",
+      "\n",
+      "\n",
+      "print \"\\n FIRST TABLE : \\n\"\n",
+      "a=readinput(5,5,1)\n",
+      "writeoutput(a,5,5)\n",
+      "\n",
+      "print \"\\n SECOND TABLE : \\n\"\n",
+      "b=readinput(5,5,50)\n",
+      "writeoutput(b,5,5)\n",
+      "\n",
+      "c=computesum(a,b,5,5)\n",
+      "print \"Sums of the elements : \\n\"\n",
+      "writeoutput(c,5,5)\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        " FIRST TABLE : \n",
+        "\n",
+        "   1    3    5    7    9\n",
+        "  11   13   15   17   19\n",
+        "  21   23   25   27   29\n",
+        "  31   33   35   37   39\n",
+        "  41   43   45   47   49\n",
+        "\n",
+        " SECOND TABLE : \n",
+        "\n",
+        "  50   52   54   56   58\n",
+        "  60   62   64   66   68\n",
+        "  70   72   74   76   78\n",
+        "  80   82   84   86   88\n",
+        "  90   92   94   96   98\n",
+        "Sums of the elements : \n",
+        "\n",
+        "  51   55   59   63   67\n",
+        "  71   75   79   83   87\n",
+        "  91   95   99  103  107\n",
+        " 111  115  119  123  127\n",
+        " 131  135  139  143  147\n"
+       ]
+      }
+     ],
+     "prompt_number": 21
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.24, Page number: 11.31<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "def readinput(m,n,i=0):\n",
+      "\n",
+      "    at=[]\n",
+      "    for row in range(0,m):\n",
+      "        temp=[]\n",
+      "        for col in range(0,n):\n",
+      "            t=i\n",
+      "            i+=2\n",
+      "            temp.append(t)\n",
+      "        at.append(temp)\n",
+      "\n",
+      "\n",
+      "    return at\n",
+      "        \n",
+      "def computesum(a,b,m,n):\n",
+      "\n",
+      "    c=[]\n",
+      "\n",
+      "    for row in range(0,m):\n",
+      "        temp=[]\n",
+      "        for col in range(0,n):\n",
+      "            t=a[row][col]+b[row][col]\n",
+      "            temp.append(t)\n",
+      "        c.append(temp)\n",
+      "\n",
+      "    return c\n",
+      "\n",
+      "def writeoutput(c,m,n):\n",
+      "\n",
+      "    for row in range(0,m):\n",
+      "        for col in range(0,n):\n",
+      "            print \"%4d\" %(c[row][col]),\n",
+      "        print\n",
+      "\n",
+      "    return\n",
+      "\n",
+      "\n",
+      "\n",
+      "print \"\\n FIRST TABLE : \\n\"\n",
+      "a=readinput(5,5,1)\n",
+      "writeoutput(a,5,5)\n",
+      "\n",
+      "print \"\\n SECOND TABLE : \\n\"\n",
+      "b=readinput(5,5,50)\n",
+      "writeoutput(b,5,5)\n",
+      "\n",
+      "c=computesum(a,b,5,5)\n",
+      "print \"Sums of the elements : \\n\"\n",
+      "writeoutput(c,5,5)\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\n",
+        " FIRST TABLE : \n",
+        "\n",
+        "   1    3    5    7    9\n",
+        "  11   13   15   17   19\n",
+        "  21   23   25   27   29\n",
+        "  31   33   35   37   39\n",
+        "  41   43   45   47   49\n",
+        "\n",
+        " SECOND TABLE : \n",
+        "\n",
+        "  50   52   54   56   58\n",
+        "  60   62   64   66   68\n",
+        "  70   72   74   76   78\n",
+        "  80   82   84   86   88\n",
+        "  90   92   94   96   98\n",
+        "Sums of the elements : \n",
+        "\n",
+        "  51   55   59   63   67\n",
+        "  71   75   79   83   87\n",
+        "  91   95   99  103  107\n",
+        " 111  115  119  123  127\n",
+        " 131  135  139  143  147\n"
+       ]
+      }
+     ],
+     "prompt_number": 22
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.26, Page number: 11.34<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "def reorder(x):\n",
+      "\n",
+      "    n=len(x)\n",
+      "    for item in range(0,n-1):\n",
+      "        for i in range(item+1,n):\n",
+      "            if x[item]>x[i]:\n",
+      "                temp=x[item]\n",
+      "                x[item]=x[i]\n",
+      "                x[i]=temp\n",
+      "\n",
+      "\n",
+      "    return\n",
+      "\n",
+      "x=['PACIFIC','ATLANTIC','INDIAN','CARIBBEAN','BERING','BLACK','RED','NORTH','BALTIC','CASPIAN']\n",
+      "print 'Original list of strings :\\n\\n'\n",
+      "\n",
+      "for i in x:\n",
+      "    print \"String : \",i\n",
+      "\n",
+      "reorder(x)\n",
+      "\n",
+      "print \"\\nReodered list of strings : \\n\\n\"\n",
+      "\n",
+      "for i in x:\n",
+      "    print \"String : \",i"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Original list of strings :\n",
+        "\n",
+        "\n",
+        "String :  PACIFIC\n",
+        "String :  ATLANTIC\n",
+        "String :  INDIAN\n",
+        "String :  CARIBBEAN\n",
+        "String :  BERING\n",
+        "String :  BLACK\n",
+        "String :  RED\n",
+        "String :  NORTH\n",
+        "String :  BALTIC\n",
+        "String :  CASPIAN\n",
+        "\n",
+        "Reodered list of strings : \n",
+        "\n",
+        "\n",
+        "String :  ATLANTIC\n",
+        "String :  BALTIC\n",
+        "String :  BERING\n",
+        "String :  BLACK\n",
+        "String :  CARIBBEAN\n",
+        "String :  CASPIAN\n",
+        "String :  INDIAN\n",
+        "String :  NORTH\n",
+        "String :  PACIFIC\n",
+        "String :  RED\n"
+       ]
+      }
+     ],
+     "prompt_number": 23
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.28, Page number: 11.37<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "def convert(mm,dd,yy):\n",
+      "    yy-=1900\n",
+      "    ndays=long(30.42*(mm-1)+dd)\n",
+      "    if mm==2:\n",
+      "        ndays+=1\n",
+      "    if mm>2 and mm<8:\n",
+      "        ndays-=1\n",
+      "    if yy%4==0 and mm<2:\n",
+      "        ndays+=1\n",
+      "\n",
+      "    ncycles=yy/4\n",
+      "    ndays+=ncycles*1461\n",
+      "\n",
+      "    nyears=yy%4\n",
+      "    if nyears>0:\n",
+      "        ndays+=365*nyears+1\n",
+      "    if ndays>59:\n",
+      "        ndays-=1\n",
+      "\n",
+      "    day=ndays%7\n",
+      "\n",
+      "    return day\n",
+      "\n",
+      "def main(mm,dd,yy):\n",
+      "    day_of_week=convert(mm,dd,yy)\n",
+      "    print \"%s, %s %d %d\" %(weekday[day_of_week],month[mm-1],dd,yy)\n",
+      "    return\n",
+      "    \n",
+      "weekday=['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday']\n",
+      "month=['January','February','March','April','May','June','July','August',\\\n",
+      "       'September','October','November','December']\n",
+      "\n",
+      "main(10,29,1929)\n",
+      "print\n",
+      "main(8,15,1945)\n",
+      "print\n",
+      "main(7,20,1969)\n",
+      "print\n",
+      "main(5,24,1997)\n",
+      "print\n",
+      "main(8,30,2010)\n",
+      "print\n",
+      "main(4,12,2069)\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Tuesday, October 29 1929\n",
+        "\n",
+        "Wednesday, August 15 1945\n",
+        "\n",
+        "Sunday, July 20 1969\n",
+        "\n",
+        "Saturday, May 24 1997\n",
+        "\n",
+        "Monday, August 30 2010\n",
+        "\n",
+        "Friday, April 12 2069\n"
+       ]
+      }
+     ],
+     "prompt_number": 24
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "<h3>Example 11.30, Page number: 11.44<h3>"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\n",
+      "def ratio_choose(freq,a,m,n):\n",
+      "\n",
+      "    if freq=='C':\n",
+      "        ratio=md3(a,m,n)\n",
+      "    elif freq=='D':\n",
+      "        ratio=md2(a,m,n)\n",
+      "    else:\n",
+      "        ratio=md1(a,m,n)\n",
+      "\n",
+      "    return ratio\n",
+      "\n",
+      "\n",
+      "def table(freq,a,m,n):\n",
+      "\n",
+      "\n",
+      "    print \"Interest Rate          Future Amount\\n\\n\"\n",
+      "    for count in range(1,21):\n",
+      "        i=0.01*count\n",
+      "        f=a*ratio_choose(freq,i,m,n)\n",
+      "        print \"    %2d                      %.2f\" %(count,f)\n",
+      "\n",
+      "    return\n",
+      "\n",
+      "def md1(i,m,n):\n",
+      "    \n",
+      "    factor=1+i/m\n",
+      "    ratio=12*(factor**(m*n)-1)/i\n",
+      "    return ratio\n",
+      "\n",
+      "def md2(i,m,n):\n",
+      "\n",
+      "    factor=1+i/m\n",
+      "    ratio=(factor**(m*n)-1)/(factor**(m/12)-1)\n",
+      "    return ratio\n",
+      "\n",
+      "def md3(i,dummy,n):\n",
+      "    ratio=(10**(i*n)-1)/(10**(i/12)-1)\n",
+      "    return ratio\n",
+      "\n",
+      "def main(freq):\n",
+      "    m=0\n",
+      "    freq=freq.upper()\n",
+      "    if freq=='A':\n",
+      "        m=1\n",
+      "        print \"\\nAnual Compounding\\n\"\n",
+      "        \n",
+      "    elif freq=='S':\n",
+      "        m=2\n",
+      "        print \"\\nSemiannual Compounding\\n\"\n",
+      "        \n",
+      "    elif freq=='Q':\n",
+      "        print \"\\nQuaterly Compounding\\n\"\n",
+      "        m=4\n",
+      "        \n",
+      "    elif freq=='M':\n",
+      "        m=12\n",
+      "        print \"\\nMonthly Compounding\\n\"\n",
+      "        \n",
+      "    elif freq=='D':\n",
+      "        m=360\n",
+      "        print \"\\nDaily Compounding\\n\"\n",
+      "\n",
+      "    elif freq=='C':\n",
+      "        m=0\n",
+      "        print \"\\nContinuous Compounding\\n\"\n",
+      "        \n",
+      "    else:\n",
+      "        print \"\\nERROR!!! Please Repeat\\n\\n\"\n",
+      "        return\n",
+      "        \n",
+      "    return m\n",
+      "\n",
+      "\n",
+      "a,n,freq=100,3,'m'\n",
+      "print \"FUTURE VALUE OF A SERIES OF MONTHLY DEPOSITS\\n\\n\"\n",
+      "print \"Frequency of Compunding (A,S,Q,M,D,C): \",freq\n",
+      "print \"Amount of Each Monthly Payement : \",a\n",
+      "print \"Number of years: \",n\n",
+      "m=main(freq)\n",
+      "\n",
+      "table(freq,a,m,n)\n",
+      "\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "FUTURE VALUE OF A SERIES OF MONTHLY DEPOSITS\n",
+        "\n",
+        "\n",
+        "Frequency of Compunding (A,S,Q,M,D,C):  m\n",
+        "Amount of Each Monthly Payement :  100\n",
+        "Number of years:  3\n",
+        "\n",
+        "Monthly Compounding\n",
+        "\n",
+        "Interest Rate          Future Amount\n",
+        "\n",
+        "\n",
+        "     1                      3653.00\n",
+        "     2                      3707.01\n",
+        "     3                      3762.06\n",
+        "     4                      3818.16\n",
+        "     5                      3875.33\n",
+        "     6                      3933.61\n",
+        "     7                      3993.01\n",
+        "     8                      4053.56\n",
+        "     9                      4115.27\n",
+        "    10                      4178.18\n",
+        "    11                      4242.31\n",
+        "    12                      4307.69\n",
+        "    13                      4374.33\n",
+        "    14                      4442.28\n",
+        "    15                      4511.55\n",
+        "    16                      4582.17\n",
+        "    17                      4654.18\n",
+        "    18                      4727.60\n",
+        "    19                      4802.45\n",
+        "    20                      4878.78\n"
+       ]
+      }
+     ],
+     "prompt_number": 25
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [],
+     "language": "python",
+     "metadata": {},
+     "outputs": [],
+     "prompt_number": 25
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file