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Page 1732 of 2109
Swift Program to Round a Number to n Decimal Places
This tutorial will discuss how to write a Swift program to round a number to n decimal places. Rounding a number means round a decimal number to a certain number of decimal places or we can say round to the nearest wholes, tenths, hundredths, or thousandth. It save time and helps to express long term into short term. Rounding is only applicable on Float and Double data types. When you round a number always remember the following points − If the last digit is less than 5(that is 0, 1, 2, 3, 4) then round the previous digit down. For ...
Read MoreSwift Program to Sort Elements in Lexicographical Order (Dictionary Order)
This tutorial will discuss how to write a Swift program to sort elements in lexicographical order(Dictionary order). An arrangement of the words, characters or numbers in alphabetical order staring from A to Z is known as lexicographic order. It is also known as dictionary order because the searching of the words are same as we search in the real dictionary. In lexicographical order, the words whose first letter is same are arranged in the same group and in the group words are sorted according to their second letter and so on. To sort the given list of elements into lexicographic ...
Read MoreSwift Program to Count the Number of Vowels and Consonants in a Sentence
This tutorial will discuss how to write a Swift program to count the number of vowels and consonants in a sentence. An alphabet contains 26 letters out of which 5 are vowels and 21 are consonants. A, E, I, O, and U are known as vowels and B, C, D, F, G, H, J, K, L, M, N, P, Q, R, S, T, V, W, X, Y, Z are known as consonants. Below is a demonstration of the same − Input Suppose our given input is − Entered String I like momos Output The desired output would be − ...
Read MoreThree way partitioning of an array around a given range using Python
Given an array and the range of the array [startval, endval]. Array is divided by three parts. All elements smaller than startval come first. All elements in range startval to endval come next. All elements greater than endval appear in the end. Let’s say we have the following input − A = [1, 14, 51, 12, 4, 2, 54, 20, 87, 98, 3, 1, 32] startval = 14, endval = 54 The output should be − A = [1, 12, 4, 2, 3, 1, 14, 51, 20, 32, 54, 87, 98] Three-way partitioning of an array around ...
Read MorePython Truth Value Testing
What is Truth Value We can use any object to test the truth value. By providing the condition in the if or while statement, the checking can be done. Until a class method __bool__() returns False or __len__() method returns 0, we can consider the truth value of that object is True. The value of a constant is False, when it is False, or None. When a variable contains different values like 0, 0.0, Fraction(0, 1), Decimal(0), 0j, then it signifies the False Value. The empty sequence ‘‘, [], (), {}, set(0), range(0), Truth value of these elements are ...
Read MoreQuine in Python
The Quine is a program, which takes no input, but it produces output. It will show its own source code. Additionally, Quine has some conditions. We cannot open the source code file inside the program. Example 1 Here a simple string formatting is working. We are defining a variable ‘a’, and inside a, we are storing ‘a=%r;print (a%%a)’ Then we are printing the value of a, and also replacing %r with the value of a. Thus the quine is working − a='a=%r;print (a%%a)';print (a%a) Output a='a=%r;print (a%%a)';print (a%a) Example 2 We defined a variable _ and assigned ‘_=%r;print ...
Read MoreTimer objects in Python
In Python, Timer is a subclass of Thread class. Calling the start() method, the timer starts. Timer objects are used to create some actions which are bounded by the time period. Using timer object create some threads that carries out some actions. The Timer is stopped using the cancel() method. How to create a Timer object Following is how you can create a Timer object in Python − threading.Timer(interval, function, args = None, kwargs = None) Starting a Timer The timer.start() is used for start the timer. Here’s an example − Example import threading # All the text displays ...
Read MorePython program to find N largest elements from a list
In this example, we will see how to find the N largest elements from a List. The list is the most versatile datatype available in Python, which can be written as a list of comma-separated values (items) between square brackets. Important thing about a list is that the items in a list need not be of the same type Let’s say the following is the input list − [25, 18, 29, 87, 45, 67, 98, 5, 59] The following is the output displaying the N largest element from the list. Here, N = 3 − [98, 87, 67] ...
Read MoreHow to check if a string is a valid keyword in Python?
To check if a string is a valid keyword, import the keyword module and use the iskeyword() method. With that, you can directly display all the keywords at once and verify. Let’s say the following is our input − else The following is the output. The “else” is a keyword in Python − Keyword Check if a string is a valid keyword in Python Example import keyword # Create a List myList = ["for", "amit", "val", "while"] # Display the List print("List = ", myList) keyword_list = [] non_keyword_list = [] # Looping and ...
Read MoreBinary to decimal and vice-versa in Python
In this article, we will see how to convert Binary to Decimal and Decimal to Binary. Binary is the simplest kind of number system that uses only two digits of 0 and 1 (i.e. value of base 2). Since digital electronics have only these two states (either 0 or 1), so binary number is most preferred in modern computer engineer, networking and communication specialists, and other professionals. Decimal number system has base 10 as it uses 10 digits from 0 to 9. In decimal number system, the successive positions to the left of the decimal point represent units, tens, hundreds, ...
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