{
"metadata": {
"name": ""
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 6: Storage classes"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.1, Page number: 180"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"n = int(raw_input('Enter any number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def fact (n) :\n",
" prod = 1\n",
" while n :\n",
" prod = prod * n\n",
" n = n - 1\n",
" return prod\n",
"\n",
"print ('Factorial of %d is %d' % (n, fact(n)))\n",
"\n",
"m = int(raw_input('Enter another number '))\n",
"\n",
"print ('Factorial of %d is %d' % (m, fact(m)))\n",
"\n",
"print ('Factorial of 6 is %d' % fact(6))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter any number 5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Factorial of 5 is 120\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter another number 3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Factorial of 3 is 6\n",
"Factorial of 6 is 720\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.2, Page number: 183"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"a = int(raw_input('Enter first number '))\n",
"b = int(raw_input('Enter second number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def add (a, b) :\n",
" global som\n",
" som = a + b\n",
"\n",
"add (a, b)\n",
"\n",
"print ('The sum of %d + %d = %d' % (a, b, som))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter first number 2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter second number 3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The sum of 2 + 3 = 5\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.3, Page number: 187"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"global y\n",
"y = 90\n",
"m = 10\n",
"z = 2.18\n",
"\n",
"# Function declaration, calculation and result\n",
"def fun1 (m, y, z) :\n",
" z = 3.141\n",
" print ('%f' % z)\n",
"\n",
"fun1 (m, y, z)\n",
"\n",
"print ('%d %d %f' % (m, y, z))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"3.141000\n",
"10 90 2.180000\n"
]
}
],
"prompt_number": 3
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.4, Page number: 190"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"global x, y, z, ch, tmp\n",
"z = 2.18\n",
"y = 90\n",
"ch = '#'\n",
"m = 10\n",
"x = '*'\n",
"tmp = '^'\n",
"\n",
"# Function declaration, calculation and result\n",
"def fun1 (m, y, z) :\n",
" z = 3.141\n",
" num = 100\n",
" tmp = '$'\n",
" x = 50\n",
" ch = '@'\n",
" print ('In FUNCTION FORMAL PARAMETERS')\n",
" print ('In the function value of m = %d address of m = %x' % (m, id(m)))\n",
" print ('In the function value of y = %d address of y = %x' % (y, id(y)))\n",
" print ('In the function value of z = %f address of z = %x' % (z, id(z)))\n",
"\n",
" print ('In FUNCTION LOCAL VARIABLES')\n",
" print ('In the function value of z = %f address of z = %x' % (z, id(z)))\n",
" print ('In the function value of num = %d address of num = %x' % (num, id(num)))\n",
" print ('In the function value of tmp = %s address of tmp = %x' % (tmp, id(tmp)))\n",
"\n",
" print ('In FUNCTION GLOBAL VARIABLES')\n",
" print ('In the function value of x = %s address of x = %x' % (x, id(x)))\n",
" print ('In the function value of y = %d address of y = %x' % (y, id(y)))\n",
" print ('In the function value of ch = %s address of ch = %x' % (ch, id(ch)))\n",
"\n",
"\n",
"print ('In MAIN LOCAL VARIABLES')\n",
"print ('In Main the value of m = %d address of m = %x' % (m, id(m)))\n",
"print ('In Main the value of x = %s address of x = %s' % (x, id(x)))\n",
"print ('In MAIN GLOBAL VARIABLES')\n",
"print ('In Main the value of y = %d address of y = %x' % (y, id(y)))\n",
"print ('In Main the value of z = %f address of z = %x' % (z, id(z)))\n",
"print ('In Main the value of ch = %s address of ch = %s' % (ch, id(ch)))\n",
"print ('In Main the value of tmp = %s address of tmp = %x' % (tmp, id(tmp)))\n",
"\n",
"fun1 (m, y, z)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"In MAIN LOCAL VARIABLES\n",
"In Main the value of m = 10 address of m = 117d0c0\n",
"In Main the value of x = * address of x = 140148786619376\n",
"In MAIN GLOBAL VARIABLES\n",
"In Main the value of y = 90 address of y = 117d8d0\n",
"In Main the value of z = 2.180000 address of z = 16ca340\n",
"In Main the value of ch = # address of ch = 140148787513184\n",
"In Main the value of tmp = ^ address of tmp = 7f76eea46eb8\n",
"In FUNCTION FORMAL PARAMETERS\n",
"In the function value of m = 10 address of m = 117d0c0\n",
"In the function value of y = 90 address of y = 117d8d0\n",
"In the function value of z = 3.141000 address of z = 16ca2f8\n",
"In FUNCTION LOCAL VARIABLES\n",
"In the function value of z = 3.141000 address of z = 16ca2f8\n",
"In the function value of num = 100 address of num = 117d7e0\n",
"In the function value of tmp = $ address of tmp = 7f76eeb088a0\n",
"In FUNCTION GLOBAL VARIABLES\n",
"In the function value of x = 50 address of x = 117d4c8\n",
"In the function value of y = 90 address of y = 117d8d0\n",
"In the function value of ch = @ address of ch = 7f76ed6203f0\n"
]
}
],
"prompt_number": 4
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.5, Page number: 193"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"a = int(raw_input('Enter first number '))\n",
"b = int(raw_input('Enter second number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def add (a, b) :\n",
" global som\n",
" som = a + b\n",
"\n",
"add (a, b)\n",
"\n",
"print ('The sum of %d + %d = %d' % (a, b, som))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter first number 20\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter second number 30\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The sum of 20 + 30 = 50\n"
]
}
],
"prompt_number": 5
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.6, Page number: 194"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"a = int(raw_input('Enter first number '))\n",
"b = int(raw_input('Enter second number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def greater (a, b) :\n",
" global big\n",
" if a == b :\n",
" big = 'equal'\n",
" else :\n",
" if a > b :\n",
" big = 'first'\n",
" else :\n",
" big = 'second'\n",
" return big\n",
"\n",
"greater (a, b)\n",
"\n",
"if big == 'equal' :\n",
" print ('EQUAL')\n",
"else :\n",
" if big == 'first' :\n",
" print ('First number is greater %d' % a)\n",
" else :\n",
" print ('Second number is greater %d' % b)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter first number 20\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter second number 20\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"EQUAL\n"
]
}
],
"prompt_number": 6
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.7, Page number: 196"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"a = int(raw_input('Enter first number '))\n",
"b = int(raw_input('Enter second number '))\n",
"c = int(raw_input('Enter third number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def greater (a, b, c) :\n",
" if a>b :\n",
" if a>c :\n",
" print ('The greatest number is %d ' % a)\n",
" else :\n",
" print ('The greatest number is %d ' % c)\n",
"\n",
" else :\n",
" if b>c :\n",
" print ('The greatest number is %d ' % b)\n",
" else : \n",
" print ('The greatest number is %d ' % c)\n",
"\n",
"greater (a, b, c)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter first number 190\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter second number 128\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter third number 45\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The greatest number is 190 \n"
]
}
],
"prompt_number": 7
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.8, Page number: 198"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"n = int(raw_input('Enter any number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def summate (n) :\n",
" i = 1\n",
" global total\n",
" total = 0\n",
" while i <= n :\n",
" total = total + i\n",
" i = i+1\n",
" \n",
"summate (n)\n",
"\n",
"print ('Sum of first %d natural numbers is %d' % (n, total))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter any number 6\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Sum of first 6 natural numbers is 21\n"
]
}
],
"prompt_number": 8
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.9, Page number: 199"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"n = int(raw_input('Enter any number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def sumofdigit (n) :\n",
" global sum\n",
" sum = 0\n",
" while n > 0 :\n",
" sum = sum + n%10\n",
" n = n/10\n",
" return sum\n",
"\n",
"sumofdigit (n)\n",
"\n",
"print ('Sum of digits of %d is %d' % (n, sum))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter any number 7612\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Sum of digits of 7612 is 16\n"
]
}
],
"prompt_number": 9
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.10, Page number: 201"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"n = int(raw_input('Enter any number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def checkprime (n) :\n",
" flag = 1\n",
" i = 2\n",
" while i<n and flag :\n",
" if n%i == 0 :\n",
" flag = 0\n",
" i = i+1\n",
" return flag\n",
"\n",
"result = checkprime (n)\n",
"\n",
"if result :\n",
" print ('The number %d is PRIME ' % n)\n",
"else :\n",
" print ('The number %d is COMPOSITE ' % n)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter any number 14\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"The number 14 is COMPOSITE \n"
]
}
],
"prompt_number": 10
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.11, Page number: 203"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"n = int(raw_input('Enter any number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def makethird (n) :\n",
" first = 0\n",
" second = 1\n",
" count = 3\n",
" print ('%d terms of the Fibonacci series are ' % n)\n",
" print ('%d %d ' % (first, second)),\n",
" while count<=n :\n",
" third = first + second\n",
" first = second\n",
" second = third\n",
" print (' %d ' % third),\n",
" count = count + 1\n",
"\n",
"makethird (n)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter any number 10\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"10 terms of the Fibonacci series are \n",
"0 1 1 2 3 5 8 13 21 34 \n"
]
}
],
"prompt_number": 11
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.12, Page number: 205"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"n = int(raw_input('Enter any number '))\n",
"sum = n\n",
"\n",
"# Function declaration, calculation and result\n",
"def sumofdigit (n, sum) :\n",
" while sum>=10 :\n",
" sum = 0\n",
" while n>0 :\n",
" sum = sum + n%10\n",
" n = n/10\n",
" n = sum\n",
" return sum\n",
"\n",
"result = sumofdigit (n, sum)\n",
"\n",
"print ('Sum of digits of %d is %d' % (n, result))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter any number 7612\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Sum of digits of 7612 is 7\n"
]
}
],
"prompt_number": 12
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.13, Page number: 207"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"n = int(raw_input('Enter any number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def prime (n) :\n",
" for num in range (2, n) :\n",
" flag = 1\n",
" for i in range (2, num) :\n",
" if num % i == 0 : \n",
" flag = 0\n",
" if flag :\n",
" print ('%d ' % num),\n",
"\n",
"prime (n)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter any number 20\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"2 3 5 7 11 13 17 19 \n"
]
}
],
"prompt_number": 14
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.14, Page number: 210"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"m = int(raw_input('Enter any number '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def fun1 (m) :\n",
" if not hasattr(fun1, \"temp\") : \n",
" fun1.temp = 0\n",
" print ('In function value of temp = %d' % fun1.temp)\n",
" if fun1.temp < m :\n",
" fun1.temp = m\n",
" else :\n",
" fun1.temp = fun1.temp + 1\n",
"\n",
"for i in range (1, 6) :\n",
" fun1 (m)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter any number 10\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"In function value of temp = 0\n",
"In function value of temp = 10\n",
"In function value of temp = 11\n",
"In function value of temp = 12\n",
"In function value of temp = 13\n"
]
}
],
"prompt_number": 15
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.15, Page number: 212"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"m = 10\n",
"i = 1\n",
"\n",
"# Function declaration, calculation and result\n",
"def fun1 (m) :\n",
" x = m\n",
" if not hasattr(fun1, \"temp\") : \n",
" fun1.temp = 0\n",
"\n",
" if fun1.temp == 0 :\n",
" print ('\\nIn FUNCTION Global variable')\n",
" print ('Value of m = %d address of m = %x' % (m, id(m)))\n",
" print ('\\nIn FUNCTION Formal parameter variable')\n",
" print ('Value of x = %d address of x = %x' % (x, id(x)))\n",
" print ('\\nIn FUNCTION Static variable')\n",
" print ('Value of temp = %d address of temp = %x' % (fun1.temp, id(fun1.temp)))\n",
"\n",
" if fun1.temp < m :\n",
" fun1.temp = m\n",
"\n",
" else :\n",
" print ('Value of temp = %d' % fun1.temp)\n",
" fun1.temp = fun1.temp + 1\n",
"\n",
"print ('\\nIn MAIN Global variable')\n",
"print ('Value of m = %d address of m = %x' % (m, id(m)))\n",
"print ('\\nIn MAIN Local variable')\n",
"print ('Value of i = %d address of i = %x' % (i, id(i)))\n",
" \n",
"for i in range (1, 6) :\n",
" fun1 (m)"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"In MAIN Global variable\n",
"Value of m = 10 address of m = 117d0c0\n",
"\n",
"In MAIN Local variable\n",
"Value of i = 1 address of i = 117d198\n",
"\n",
"In FUNCTION Global variable\n",
"Value of m = 10 address of m = 117d0c0\n",
"\n",
"In FUNCTION Formal parameter variable\n",
"Value of x = 10 address of x = 117d0c0\n",
"\n",
"In FUNCTION Static variable\n",
"Value of temp = 0 address of temp = 117d1b0\n",
"Value of temp = 10\n",
"Value of temp = 11\n",
"Value of temp = 12\n",
"Value of temp = 13\n"
]
}
],
"prompt_number": 16
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6.16, Page number: 215"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"# Variable declaration\n",
"n = int(raw_input('Enter number of Fibonacci terms required '))\n",
"\n",
"# Function declaration, calculation and result\n",
"def nextfibo () :\n",
" if not hasattr(nextfibo, \"first\") : \n",
" nextfibo.first = 0\n",
" if not hasattr(nextfibo, \"second\") : \n",
" nextfibo.second = 1\n",
" if not hasattr(nextfibo, \"third\") : \n",
" nextfibo.third = 0\n",
" nextfibo.third = nextfibo.first + nextfibo.second\n",
" nextfibo.first = nextfibo.second\n",
" nextfibo.second = nextfibo.third\n",
" return nextfibo.first\n",
" \n",
"print ('%d terms of Fibonacci series are' % n) \n",
"print 0,\n",
"for count in range (2, n+1) :\n",
" result = nextfibo ()\n",
" print ('%d' % result),"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"Enter number of Fibonacci terms required 10\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"10 terms of Fibonacci series are\n",
"0 1 1 2 3 5 8 13 21 34\n"
]
}
],
"prompt_number": 17
}
],
"metadata": {}
}
]
}