{
"metadata": {
"name": ""
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 7: Arrays and Subscripted Variables"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 1, Page Number : ASV-4"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"#Variable Initialization\n",
"n = int(raw_input(\"\\nHow many integers ? \"))\n",
"x = [0 for i in range(0,n)]\n",
"\n",
"for i in range(0,n):\n",
" x[i] = int(raw_input(\"\\nEnter the %dth value : \"%(i+1)))\n",
" \n",
"#Processing\n",
"#sum is a predefined function in python. so sum1 is used\n",
"sum1 = 0\n",
"for i in range(0,n):\n",
" sum1 = sum1 + x[i]\n",
" \n",
"#Output\n",
"sys.stdout.write(\"\\nSum of all integers = %d\"%(sum1))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"How many integers ? 5\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter the 1th value : 36\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter the 2th value : 45\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter the 3th value : 52\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter the 4th value : 44\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter the 5th value : 62\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Sum of all integers = 239"
]
}
],
"prompt_number": 10
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 2, Page Number : ASV-5"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"#Variable initialization\n",
"n = int(raw_input(\"\\nHow many numbers ? \"))\n",
"sys.stdout.write(\"\\nEnter all those numbers \")\n",
"x = [0 for i in range(0,n)]\n",
"\n",
"for i in range(0,n):\n",
" x[i] = int(raw_input(\"\"))\n",
" \n",
"#Processing\n",
"big = x[0]\n",
"for i in range(0,n):\n",
" if x[i] > big:\n",
" big = x[i]\n",
" \n",
"#Output\n",
"sys.stdout.write(\"\\n%d is the biggest number\"%(big))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"How many numbers ? 5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter all those numbers "
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"25\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-228\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"0\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"185\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"36\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"185 is the biggest number"
]
}
],
"prompt_number": 11
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 3, Page Number : ASV-6"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"import math\n",
"\n",
"#Variable Initialization\n",
"n = int(raw_input(\"\\nHow many values ? \"))\n",
"x = [0.0 for i in range(0,n)]\n",
"\n",
"sys.stdout.write(\"\\nEnter all values in the list\\n\")\n",
"for i in range(0,n):\n",
" x[i] = float(raw_input(\"\"))\n",
" \n",
"#Processing\n",
"sum1 = 0\n",
"#Since sum is a predefined function in python, sum1 is used\n",
"for i in range(0,n):\n",
" sum1 = sum1 + x[i]\n",
"xbar = sum1 / n\n",
"vsum = 0\n",
"\n",
"for i in range(0,n):\n",
" vsum = vsum + (x[i] - xbar) * (x[i] - xbar)\n",
"sigmax = vsum / n\n",
"sd = math.sqrt(sigmax)\n",
"\n",
"#Output\n",
"sys.stdout.write(\"\\nArithmetic mean = %0.3f\"%(xbar))\n",
"sys.stdout.write(\"\\nVariance = %0.3f\"%(sigmax))\n",
"sys.stdout.write(\"\\nStandard deviation = %0.3f\"%(sd))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"How many values ? 6\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter all values in the list\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3.1\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3.8\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3.6\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"4.0\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3.4\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3.8\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Arithmetic mean = 3.617\n",
"Variance = 0.088\n",
"Standard deviation = 0.297"
]
}
],
"prompt_number": 13
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 4, Page Number : ASV-8"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"#Variable Initialization\n",
"n = int(raw_input(\"\\nHow many students ? \"))\n",
"\n",
"sys.stdout.write(\"\\nEnter all the marks \\n\")\n",
"for i in range(0,n):\n",
" x[i] = int(raw_input(\"\"))\n",
" \n",
"#Processing\n",
"sum1 = 0.0\n",
"#Since sum is a predefined function in python, sum1 is used\n",
"for i in range(0,n):\n",
" sum1 = sum1 + x[i]\n",
" \n",
"mean = float(sum1/n)\n",
"\n",
"#Output\n",
"sys.stdout.write(\"\\nMean = %6.2f\"%(mean))\n",
"sys.stdout.write(\"\\n\\nMarks greater than mean : \")\n",
"\n",
"for i in range(0,n):\n",
" if x[i] > mean:\n",
" sys.stdout.write(\"%5d\"%(x[i]))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"How many students ? 5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter all the marks \n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"58\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"63\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"68\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"54\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"48\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Mean = 58.20\n",
"\n",
"Marks greater than mean : 63 68"
]
}
],
"prompt_number": 15
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 5, Page Number : ASV-9"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"import math\n",
"\n",
"#Variable Initialization\n",
"n = int(raw_input(\"\\nHow many values ? \"))\n",
"\n",
"sys.stdout.write(\"\\nEnter all values in the list \\n\")\n",
"for i in range(0,n):\n",
" x[i] = float(raw_input(\"\"))\n",
" \n",
"psum = 0\n",
"nsum = 0\n",
"\n",
"#Processing\n",
"for i in range(0,n):\n",
" if x[i] > 0:\n",
" psum = psum + x[i]\n",
" else:\n",
" nsum = nsum + x[i]\n",
" \n",
"#Output\n",
"sys.stdout.write(\"\\nSum of positive values = %0.2f\"%(psum))\n",
"sys.stdout.write(\"\\nSum of negative values = %0.2f\"%(nsum))\n",
"if psum > math.fabs(nsum):\n",
" sys.stdout.write(\"\\nPositive sum is greater in magnitude\")\n",
"else:\n",
" sys.stdout.write(\"\\nNegative sum is greater in magnitude\")\n",
" \n",
"diff = math.fabs(psum - math.fabs(nsum))\n",
"sys.stdout.write(\"\\nDifference in magnitude = %0.2f\"%(diff))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"How many values ? 6\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter all values in the list \n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"8\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-12\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-16\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"12\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-9\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Sum of positive values = 25.00\n",
"Sum of negative values = -37.00\n",
"Negative sum is greater in magnitude\n",
"Difference in magnitude = 12.00"
]
}
],
"prompt_number": 16
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 6, Page Number : ASV-11"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"#Variable Initialization\n",
"n = int(raw_input(\"How many numbers ? \"))\n",
"\n",
"sys.stdout.write(\"\\nEnter the list of %d numbers\\n\"%(n))\n",
"for i in range(0,n):\n",
" x[i] = int(raw_input(\"\"))\n",
" \n",
"#Processing\n",
"for i in range(0,n):\n",
" for j in range(i+1,n):\n",
" if x[i] > x[j]:\n",
" temp = x[i]\n",
" x[i] = x[j]\n",
" x[j] = temp\n",
" \n",
"#Output\n",
"sys.stdout.write(\"\\nNumbers in ascending order\\n\")\n",
"for i in range(0,n):\n",
" sys.stdout.write(\"%5d\"%(x[i]))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"How many numbers ? 4\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter the list of 4 numbers\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"32\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-10\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"20\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Numbers in ascending order\n",
" -10 5 20 32"
]
}
],
"prompt_number": 18
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 7, Page Number : ASV-13"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"x = [0 for i in range(0,50)]\n",
"\n",
"#Variable Initialization\n",
"n = int(raw_input(\"\\nHow many values in the list ? \"))\n",
"\n",
"sys.stdout.write(\"\\nEnter all values in the list\\n\")\n",
"for i in range(0,n):\n",
" x[i] = int(raw_input(\"\"))\n",
"s = int(raw_input(\"\\nEnter the key value to be searched : \"))\n",
"\n",
"#Processing\n",
"for i in range(0,n):\n",
" if s == x[i]:\n",
" sys.stdout.write(\"\\n%d is available in %dth location\"%(s,i+1))\n",
" \n",
"if i == n+1:\n",
" sys.stdout.write(\"\\nThe key value %d is not present in the list\"%(s))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"How many values in the list ? 6\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter all values in the list\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"6\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"8\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"13\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"10\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter the key value to be searched : 3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"3 is available in 4th location"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 8, Page Number : ASV-15"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"#Variable Initialization\n",
"exchng = 0\n",
"n = int(raw_input(\"\\nHow many numbers ? \"))\n",
"sys.stdout.write(\"\\nEnter all numbers in the list\\n\")\n",
"for i in range(0,n):\n",
" x[i] = int(raw_input(\"\"))\n",
"\n",
"#Processing\n",
"for i in range(0,n-1):\n",
" for j in range(0,n-i-1):\n",
" if x[j] > x[j+1]:\n",
" temp = x[j]\n",
" x[j] = x[j+1]\n",
" x[j+1] = temp\n",
" exchng = exchng + 1\n",
" \n",
"#Output\n",
"sys.stdout.write(\"\\nThe sorted list is\\n\")\n",
"for i in range(0,n):\n",
" sys.stdout.write(\"%5d\"%(x[i]))\n",
" \n",
"sys.stdout.write(\"\\nSorted in %d passes and %d exchanges\"%(n-1,exchng))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"How many numbers ? 4\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter all numbers in the list\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"6\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"8\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"The sorted list is\n",
" -2 3 6 8\n",
"Sorted in 3 passes and 3 exchanges"
]
}
],
"prompt_number": 22
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 9, Page Number : ASV-17"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"#Variable declaration and initialization\n",
"\n",
"m = int(raw_input(\"\\nHow many rows and columns ? \"))\n",
"n = int(raw_input(\"\"))\n",
"\n",
"a = [[0 for i in range(0,m)] for j in range(0,n)]\n",
"b = [[0 for i in range(0,m)] for j in range(0,n)]\n",
"c = [[0 for i in range(0,m)] for j in range(0,n)]\n",
"\n",
"sys.stdout.write(\"\\nEnter A matrix\\n\")\n",
"for i in range(0,m):\n",
" for j in range(0,n):\n",
" a[i][j] = int(raw_input(\"\"))\n",
" \n",
"sys.stdout.write(\"\\nEnter B matrix\\n\")\n",
"for i in range(0,m):\n",
" for j in range(0,n):\n",
" b[i][j] = int(raw_input(\"\"))\n",
" \n",
"#Processing\n",
"for i in range(0,m):\n",
" for j in range(0,n):\n",
" c[i][j] = a[i][j] + b[i][j]\n",
" \n",
"#Output\n",
"sys.stdout.write(\"\\nResultant matrix is \\n\")\n",
"for i in range(0,m):\n",
" for j in range(0,n):\n",
" sys.stdout.write(\"%6d\"%(c[i][j]))\n",
" sys.stdout.write(\"\\n\")"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"How many rows and columns ? 2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter A matrix\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"0\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"4\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter B matrix\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"6\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"4\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Resultant matrix is \n",
" 8 0\n",
" 4 -1\n"
]
}
],
"prompt_number": 33
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 10, Page Number : ASV-18"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"#Variable declaration and initialization\n",
"\n",
"m = int(raw_input(\"\\nEnter order of A matrix : \"))\n",
"n = int(raw_input(\"\"))\n",
"\n",
"a = [[0 for i in range(0,m)] for j in range(0,n)]\n",
"b = [[0 for i in range(0,m)] for j in range(0,n)]\n",
"c = [[0 for i in range(0,m)] for j in range(0,n)]\n",
"\n",
"sys.stdout.write(\"\\nEnter A matrix\\n\")\n",
"for i in range(0,m):\n",
" for j in range(0,n):\n",
" a[i][j] = int(raw_input(\"\"))\n",
"\n",
"n = int(raw_input(\"\\nEnter order of B matrix : \"))\n",
"l = int(raw_input(\"\"))\n",
"\n",
"sys.stdout.write(\"\\nEnter B matrix\\n\")\n",
"for i in range(0,n):\n",
" for j in range(0,l):\n",
" b[i][j] = int(raw_input(\"\"))\n",
" \n",
"#Processing\n",
"for i in range(0,n):\n",
" for j in range(0,l):\n",
" c[i][j] = 0\n",
" for k in range(0,n):\n",
" c[i][j] = c[i][j] + a[i][k] * b[k][j]\n",
" \n",
"#Output\n",
"sys.stdout.write(\"\\nResultant matrix is \\n\")\n",
"for i in range(0,m):\n",
" for j in range(0,l):\n",
" sys.stdout.write(\"%6d\"%(c[i][j]))\n",
" sys.stdout.write(\"\\n\")"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter order of A matrix : 2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter A matrix\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"0\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"4\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter order of B matrix : 2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter B matrix\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"6\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"4\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-5\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Resultant matrix is \n",
" 4 14\n",
" 16 -20\n"
]
}
],
"prompt_number": 34
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 11, Page Number : ASV-20"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"#Variable declaration and initialization\n",
"\n",
"m = int(raw_input(\"\\nEnter order of the matrix : \"))\n",
"n = int(raw_input(\"\"))\n",
"\n",
"a = [[0 for i in range(0,10)] for j in range(0,10)]\n",
"at = [[0 for i in range(0,10)] for j in range(0,10)]\n",
"\n",
"sys.stdout.write(\"\\nEnter the matrix values\\n\")\n",
"for i in range(0,m):\n",
" for j in range(0,n):\n",
" a[i][j] = int(raw_input(\"\"))\n",
"\n",
"#Processing\n",
"for i in range(0,m):\n",
" for j in range(0,n):\n",
" at[j][i] = a[i][j]\n",
" \n",
"#Output\n",
"sys.stdout.write(\"\\nThe transposed matrix is\\n\")\n",
"for i in range(0,n):\n",
" for j in range(0,m):\n",
" sys.stdout.write(\"%6d\"%(at[i][j]))\n",
" sys.stdout.write(\"\\n\")"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter order of the matrix : 2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter the matrix values\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-3\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"6\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"0\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"8\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"The transposed matrix is\n",
" -3 3\n",
" 6 2\n",
" 0 8\n"
]
}
],
"prompt_number": 35
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 12, Page Number : ASV-21"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"#Variable declaration and initialization\n",
"\n",
"m = int(raw_input(\"\\nEnter order of the square matrix : \"))\n",
"\n",
"a = [[0 for i in range(0,10)] for j in range(0,10)]\n",
"\n",
"sys.stdout.write(\"\\nEnter the matrix\\n\")\n",
"for i in range(0,m):\n",
" for j in range(0,m):\n",
" a[i][j] = int(raw_input(\"\"))\n",
"\n",
"#Processing\n",
"flag = 0\n",
"for i in range(0,m):\n",
" if flag == 0:\n",
" for j in range(0,m):\n",
" if flag == 0:\n",
" if a[i][j] == a[j][i]:\n",
" continue\n",
" else:\n",
" flag = 1\n",
"\n",
"#Output\n",
"if flag == 0:\n",
" sys.stdout.write(\"\\nThe given matrix is a symmetric matrix\")\n",
"else:\n",
" sys.stdout.write(\"\\nThe given matrix is not a symmetric matrix\")"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter order of the square matrix : 3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter the matrix\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"5\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"8\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"1\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-7\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"8\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-7\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"4\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"The given matrix is a symmetric matrix"
]
}
],
"prompt_number": 38
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 13, Page Number : ASV-23"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import sys\n",
"\n",
"#Variable declaration and initialization\n",
"\n",
"m = int(raw_input(\"\\nEnter order of the square matrix : \"))\n",
"\n",
"a = [[0 for i in range(0,10)] for j in range(0,10)]\n",
"\n",
"sys.stdout.write(\"\\nEnter the matrix\\n\")\n",
"for i in range(0,m):\n",
" for j in range(0,m):\n",
" a[i][j] = int(raw_input(\"\"))\n",
"\n",
"#Processing \n",
"sum1 = 0\n",
"#since sum is a predefined function in python, sum1 is used\n",
"for i in range(0,m):\n",
" sum1 = sum1 + a[i][i]\n",
" \n",
"#Output\n",
"sys.stdout.write(\"\\nTrace of the matrix = %d\"%(sum1))"
],
"language": "python",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter order of the square matrix : 3\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Enter the matrix\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"3\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"-1\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"4\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"1\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"8\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"6\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"4\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": [
"2\n"
]
},
{
"output_type": "stream",
"stream": "stdout",
"text": [
"\n",
"Trace of the matrix = 6"
]
}
],
"prompt_number": 39
},
{
"cell_type": "code",
"collapsed": false,
"input": [],
"language": "python",
"metadata": {},
"outputs": []
}
],
"metadata": {}
}
]
}