Own Docs: 2014

Tuesday 30 December 2014

Multiples of 3 or 5

Question: Find all the numbers which are multiples of 3 or 5 below 1000. For example if you consider numbers below 10 then then the answer should be [3,5,6,9] if you consider numbers below 20 then the answer should be [3,5,6,9,10,12,15,18]. Similarly find the numbers which are divisible by 3 or 5 below 1000.

Answer: I have answered this question with required number of comments. Please do ask me if you have doubt.

#Defining using a function
def multiples(n):#Argument should be the required number of numbers
 numbers = [] #defining a list to append the numbers in the list.
 for i in range(1,n):#looping through through the numbers
  if i%3==0 or i%5==0:#Condition to check whether the number is divisible by 3 or 5
   numbers.append(i)#appending the number into the list
 print numbers#Finally print the numbers

#using the function for the numbers below 1000
multiples(1000)

Output:
[3, 5, 6, 9, 10, 12, 15, 18, 20, 21, 24, 25, 27, 30, 33, 35, 36, 39, 40, 42, 45, 48, 50, 51, 54, 55, 57, 60, 63, 65, 66, 69, 70, 72, 75, 78, 80, 81, 84, 85, 87, 90, 93, 95, 96, 99, 100, 102, 105, 108, 110, 111, 114, 115, 117, 120, 123, 125, 126, 129, 130, 132, 135, 138, 140, 141, 144, 145, 147, 150, 153, 155, 156, 159, 160, 162, 165, 168, 170, 171, 174, 175, 177, 180, 183, 185, 186, 189, 190, 192, 195, 198, 200, 201, 204, 205, 207, 210, 213, 215, 216, 219, 220, 222, 225, 228, 230, 231, 234, 235, 237, 240, 243, 245, 246, 249, 250, 252, 255, 258, 260, 261, 264, 265, 267, 270, 273, 275, 276, 279, 280, 282, 285, 288, 290, 291, 294, 295, 297, 300, 303, 305, 306, 309, 310, 312, 315, 318, 320, 321, 324, 325, 327, 330, 333, 335, 336, 339, 340, 342, 345, 348, 350, 351, 354, 355, 357, 360, 363, 365, 366, 369, 370, 372, 375, 378, 380, 381, 384, 385, 387, 390, 393, 395, 396, 399, 400, 402, 405, 408, 410, 411, 414, 415, 417, 420, 423, 425, 426, 429, 430, 432, 435, 438, 440, 441, 444, 445, 447, 450, 453, 455, 456, 459, 460, 462, 465, 468, 470, 471, 474, 475, 477, 480, 483, 485, 486, 489, 490, 492, 495, 498, 500, 501, 504, 505, 507, 510, 513, 515, 516, 519, 520, 522, 525, 528, 530, 531, 534, 535, 537, 540, 543, 545, 546, 549, 550, 552, 555, 558, 560, 561, 564, 565, 567, 570, 573, 575, 576, 579, 580, 582, 585, 588, 590, 591, 594, 595, 597, 600, 603, 605, 606, 609, 610, 612, 615, 618, 620, 621, 624, 625, 627, 630, 633, 635, 636, 639, 640, 642, 645, 648, 650, 651, 654, 655, 657, 660, 663, 665, 666, 669, 670, 672, 675, 678, 680, 681, 684, 685, 687, 690, 693, 695, 696, 699, 700, 702, 705, 708, 710, 711, 714, 715, 717, 720, 723, 725, 726, 729, 730, 732, 735, 738, 740, 741, 744, 745, 747, 750, 753, 755, 756, 759, 760, 762, 765, 768, 770, 771, 774, 775, 777, 780, 783, 785, 786, 789, 790, 792, 795, 798, 800, 801, 804, 805, 807, 810, 813, 815, 816, 819, 820, 822, 825, 828, 830, 831, 834, 835, 837, 840, 843, 845, 846, 849, 850, 852, 855, 858, 860, 861, 864, 865, 867, 870, 873, 875, 876, 879, 880, 882, 885, 888, 890, 891, 894, 895, 897, 900, 903, 905, 906, 909, 910, 912, 915, 918, 920, 921, 924, 925, 927, 930, 933, 935, 936, 939, 940, 942, 945, 948, 950, 951, 954, 955, 957, 960, 963, 965, 966, 969, 970, 972, 975, 978, 980, 981, 984, 985, 987, 990, 993, 995, 996, 999]
Without using lists:

#Defining using a function
def multiples(n):#Argument should be the required number of numbers
 for i in range(1,n):#looping through through the numbers
  if i%3==0 or i%5==0:#Condition to check whether the number is divisible by 3 or 5
   print i #Printing the numbers which satisfy the condition

#using the function for the numbers below 1000
multiples(1000)

Without using function:

for i in range(1,1000):#looping through through the numbers below 1000
 if i%3==0 or i%5==0:#Condition to check whether the number is divisible by 3 or 5
  print i #Printing the numbers which satisfy the condition

Output: Both of the last two programs have the same output and is as follows:

Monday 29 December 2014

Multiples of 3 and 5 and their sum

Question: Find the multiples of 3 and 5 and add them till the numbers below 1000. For example if you consider numbers below 10 you will have [3.5,6,9] as the numbers which are divisible by 3 and 5. Their sum will be 23(3+5+6+9), where 23 is the required answer for numbers below 10(<10). Similarly if we consider numbers below 20 you will have [3,6,5,9,10,12,15,18] as the numbers which are divisible by either 3 or 5. Their sum will be 78(3+6+5+9+10+12+15+18) which will be the required answer for numbers below 20.
Similarly find out the sum for the numbers below 1000?

Answer: I have solved this question in two ways, first one I have answered this question using functions and in the second method which doesn't use functions. I have commented the code so that everyone will understand it perfectly. Please do tell me if you don't understand. I will for sure make it clear for you.

Approach using Functions:

#Defining a function as the code may be used any number of times.
#Step1:Defining the name of function
def sum_multiple(n):
#Initialize a variable sum1 = 0
    sum1 = 0
#Use the for loop to loop n-1 times
    for number in range(1,n):
#Make decision if the number is divisible by 3 or 5. Using 'OR' operator
        if number % 3 == 0 or number % 5 == 0:
#If condition is true add the value
            sum1 += number
#Finally print the sum.
    print sum1

#Use the function call for first 9 numbers.
sum_multiple(10) #Expected value of 23

#Use it to give the value for first 999 numbers(numbers below 1000).
sum_multiple(1000) #Value is 233168

Output:

23
233168

Normal Approach:

#Initialize a variable sum1 = 0
sum1 = 0
#Use the for loop to loop 999 times
for number in range(1,1000):
#Make decision if the number is divisible by 3 or 5. Using 'OR' operator
    if number % 3 == 0 or number % 5 == 0:
#If condition is true add the value
        sum1 += number
#Finally print the sum.
print sum1

Output:

Note:This problem was found on Project Euler

Installing python IDLE on your personal computer

Coming soon :)

Sunday 28 December 2014

What is python, overview

0. Contributions and Preface

Table of contents

2. Installing python IDLE on your personal computer

Python is an easy to learn high level programming language. It is also an object oriented programming. It has most of the capabilities that other programming language has. You can make games, graphics, build websites, blogs and many others. Even for your information Google the worlds most famous search engine used python to build search engine page.

Now you may have a doubt why I should only use python, is it for the reason it is easy? I don't say that you should learn python for the reason that it is easy. I suggest you to choose a smarter choice. If you compare Java, C, C++ and many other high level programming languages like python, python is easy to use, easy to read, easy to build. Even python was created by Guido Van Rossum(Who may be a lover of C(may be because, the official documentation always cites to C)) developed python for the reason that a program should be easy to read, free for all, easy to build.

Not only for the reasons stated above, python has a large community of developers around the world. There are many people contributing for this python software foundation day and night. The contribution may be in the form of donation or may be developing a module or package or even may be a software and contributing to this open source.

While python is inbuilt in Linux and Unix computers and also on Mac systems. But on windows you should install it by downloading the installer file on your computer. You can find this tutorial, installing python on your computer. Okay while all the above statements are like brain wash for you I will give you some applications or success stories of python. While the full list can be seen here: Success Stories.

I have only stated a few success stories in python but there are a lot more to know. But all these can only be done if you have a basic understanding of what python is and how to program in python at an advanced level. But if you want to know python at advanced level then you should know python at basic level. So what are you waiting for, get started. Start learning python. Start your python by installing it on your Personal Computer.

0. Contributions and Preface

Table of contents

2. Installing python IDLE on your personal computer

Saturday 27 December 2014

Contributions and Preface

**Table of contents**

>>1.What is python,overview

Contributions and Preface

Own docs python tutorial is an initiative to provide python tutorial to everyone. Actually this will be my notes of all the references I have made to learn python. Presently contributions for this tutorial is only me. But I think my community will become wide and I will have a wide range of people learning this tutorial and help me correct any mistakes I have made. May be this will serve as reference to many people in the world. I am posing these tutorials for free so that every person who have access to internet can learn python.

To mention present contributors are:

1. Anivarth

2.Blogger(A platform)

3. hilite.me

4. Sora Templates

I think in a few days more than material names I will include person names in the above. I would also request everyone to go through the tutorial and help me also in grammatical mistakes if I make any.

I have tried to make this tutorial as limited as possible so that as a beginner no one should feel un comfortable. For experience in programming I have included examples in every tutorial. I would like to highlight that this tutorial is for everyone. Everyone includes people who already have programming experience, or who never had programming experience. If you knew some basics of programming in any programming language that would be an added advantage. However don't worry even if you know any programming language or not. Just keep your experience if any aside and think yourself as if you are a beginner. Because if have to learn anything you should be broad minded. Broad minded in the sense you should be ready to read anything and everything.

Finally about copyright, all the contents of this tutorial have been copyrighted. After completing the tutorials I will write I will even copyright the whole set of tutorials as a book. This will not have any copyright problems for me afterwards. I request everyone not to copy any parts of this book for commercial use. But you can share, store or even print for your own reference. If you want to sell these tutorials there should be a written permission. All the works of this website are licensed under Creative Commons 4.0 license and copyrighted at copyrighted.com You can find the link to copyright at the end of this page. Finally Thank you for reading this tutorial and helping me to improve this tutorials.

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Thank you. Get started now by clicking the link below

**Table of contents**

>>1.What is python,overview

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Tuesday 30 December 2014

Multiples of 3 or 5

Monday 29 December 2014

Multiples of 3 and 5 and their sum

Installing python IDLE on your personal computer

Sunday 28 December 2014

What is python, overview

Saturday 27 December 2014

Contributions and Preface

Owndocs Logo

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