Begginer's Guide to C++- Chapter 5.1: Nesting in Loops

Today, we will learn nesting with loops. It is used to make some pretty spectacular programs, and I hope you will be able to make them too after reading this post! Let us first see how the compiler executes the following statements- for(i=0;i<5;i++)         //1      {for(j=0;j<5;j++) //2            {cout<<"@";              }       cout<<'/n'; ...

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Begginer's Guide to C++- Chapter 4.1: Digit Extraction

So here we are on yet another “Perfection Phase” Article. We will now learn to extract digits from a number. It is really simple, but since it is important, I will show you exactly how it is done. Let the number entered by the user be stored in an integer variable named a. Suppose that we need the sum of all the digits of the number a. Eg- if the number is 123, we want the output to be 1+2+3=6. To implement the above, we can follow the procedure as described below: int d, sum=0;   //d will be the extracted digit while(a!=0) {d=a%10;...

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Begginer's Guide to C++- Chapter 2.1: math.h Header File

As I indicated earlier, we are now heading into the “Perfection Phase”. I will NOT be teaching anything new, but rather I will give you some deeper insight into C++. These articles will be excessively short, and will focus more on a particular concept. This post will be telling you about the important and the most used functions of the header file “math.h”. Below, I use x to denote a variable/expression/constant. ceil(x) - Returns the smallest integer not less than x. Eg- ceil(-4.8) gives output as -4, and ceil(5.9) gives output as 5. floor(x)...

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Begginer's Guide to C++- Chapter 5: Nesting

I did not intend it to be published so fast. This one was actually on hold till Sunday, but since there was a popular demand, I posted it as soon as possible. Nesting is really the most essential part of a C++ code. Nesting in itself is not a bit or a piece of code, but is a concept, using which one is able to make more complicated programs, which are closer to the real world model. Today, there will be no new coding and I will try to include...

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Begginer's Guide to C++- Chapter 4: Looping

Now that we have learnt to set conditions on variables, what if we want to run a particular code multiple times till a condition is true? In this article we will do just that. Learnt in Previous Chapter: if statement switch statement Some important terms: Initialization: Initializes the variable which is to be put in the condition. Normal initialisation rules are followed. Condition: The loop is run till the condition is true. These conditions are similar to the ones used in if-else statements. Updation: For the condition to...

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