Learn the best way to calculate Fibonacci numbers with this python program, as well as the recursive implementation. There is an interesting application of Fibonacci numbers. Consider that there is an idealized rabbit population. Newborn rabbits start mating in one month. And at the end of the second month, they produce another pair of rabbits. […]
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A great example to practice both, loops and recursion, is to create a python program to calculate the factorial of a number. The factorial of a number is defined as follows: f(n) = n * f(n-1) f(0)=f(1)=1 So, let’s start with the loop version of the program. Python program to calculate the factorial of a
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Another example of practicing nested loops is a python program to add two matrices. Here, I’ll show the code and explain how to implement such a program. A general approach to adding two matrices When you add two matrices, you must add the numbers in the same position of each matrix, and that gives you
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Let’s create a Python program for arithmetic operations. Also known as a simple calculator in python. In this case, we are going to implement only the four basic arithmetic operations: sum, subtraction, multiplication, and division. At the end of the post, I’ll give some hints on how to add more operations. The menu for arithmetic
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As part of the series to practice python loops, I’ll show you to create a Python program for Armstrong numbers. Armstrong numbers are those integers numbers that are equal to the sum of each digit to the power of the number of digits in the number. See the following example. 371 = 33 + 73
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Creating a prime numbers program in python is a popular exercise to practice loops. One of the reasons is that “prime number” is a well-defined concept in mathematics. Because of that, there are no ambiguities when we consider if a number is prime or not. Condition for a prime number Let’s examine when a number
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When using a weakly typed programming language, sometimes is useful to check if the type of the input is the type that we are expecting. This will avoid unpredictable problems with our program. So, how can we know if the user input is an integer? We use exception handling. Python and variable types Python is
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Printing patterns is a great way to practice and get a better understanding of loops in any programming language. In this post, I’ll show how to print some of these patterns. General steps to print patterns in any programming language using loops With disregard of the pattern you want to print, there are general steps
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Command-line arguments or parameters are useful in many situations. In this post, I will give you examples of when and why to use them, as well as some examples. The short answer is you can get all the command-line arguments using the following code. Keep reading to find out when and why to use them.
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Command-line arguments are a useful way to gather input for our console application. In this post, I’ll show how to use these types of arguments in your console applications. Why do we use command-line arguments? As you should know by now, algorithms solve a problem by taking input and calculating an output. For instance, you
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