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Swift Articles
Page 19 of 40
Swift Program to find the EVEN numbers from the array
In this article, we will learn how to write a swift program to find even numbers from the array. Even number are those number which are completely divisible by 2. For example, 2, 6, 50, 20, etc. Here we use the following methods to find the even numbers from the array. Using for-in loop Using filter() function Method 1: Using for-in loop To find the even numbers from the given array we use for-in loop. Using for-in loop we iterate through each element of the given array and check if the element is even number or not. ...
Read MoreSwift Program to fetch elements from an array based on an index
In this article, we will learn how to write a swift program to fetch elements from an array based on an index. Using array syntax An array is used to store elements of same data type in an order whereas a set is used to store distinct elements of same data type without any definite order. In an array, every element has an index. The array index is start from 0 and goes up to N-1. Here N represent the total number of array elements. To retrieve elements from the array according to their index we can use subscript syntax. ...
Read MoreSwift Program to Convert Set of String to Array of String
In this article, we will learn how to write a swift program to convert set of string to array of string. An array is used to store elements of same data type in an order whereas a set is used to store distinct elements of same data type without any definite order. Now to convert a set of string to an array of string we use the following two methods − Using Array() initializer Using map() function Method 1: Using Array() Initializer To convert a set of string to an array of string we can use Array() initializer. ...
Read MoreSwift Program to Subtract Two Matrix Using Multi-dimensional Arrays
In this article, we will learn how to write a swift program to subtract two matrices using multi-dimensional arrays. A matrix is a mathematical structure in which the elements are placed in rows and columns format. For example, the first element is present at a00 location, the second at a01, and so on. So to subtract two matrices we are going to use the - operator to subtract the elements of two matrices like a00 - b00 and then store the sum into a new matrix. For example − Matrix 1 − $\mathrm{\begin{bmatrix}1 & 8 & 4 ewline8 & 8 ...
Read MoreSwift Program to Remove Duplicate Elements From an Array
In this article, we will learn how to write a swift program to remove duplicate elements from an array. As we know that an array can store multiple elements of the same type. It is not necessary that all the elements are unique they can be duplicated. For example, arr = [3, 5, 6, 3, 7, 8, 3, 7, 7] here 3 and 7 are duplicate elements. So here we use the following methods to remove duplicate elements − Using contains() method Using Set() initializer Method 1: Using contains() method To remove duplicate elements from the array we ...
Read MoreSwift Program to Print Matrix numbers containing in Z form
In this article, we will learn how to write a swift program to print a matrix in Z form. Here we traverse through the first row then the secondary diagonal and then the last row of the matrix to print the z form. For example, 4x4 Matrix − $\mathrm{\begin{bmatrix}4 & 1 & 4 & 1 ewline1 & 3 & 1 & 3ewline2 & 1 & 1 & 2ewline1 & 6 & 6 & 1\end{bmatrix}}$ So the Z form numbers are − $\mathrm{\begin{bmatrix}4 & 1 & 4 & 1 ewline & & 1 & ewline & 1 & & ...
Read MoreSwift program to Print an Identity Matrix
In this article, we will learn how to write a swift program to print an identity matrix. Identity matrix is a square matrix in which the main diagonal elements contain only one and the rest of the elements are 0. For example − $\mathrm{Matrix\:=\:\begin{bmatrix}1 & 0 & 0 & 0 & 0 ewline0 & 1 & 0 & 0 & 0 ewline0 & 0 & 1 & 0 & 0ewline0 & 0 & 0 & 1 & 0ewline0 & 0 & 0 & 0 & 1\end{bmatrix}}$ Algorithm Step 1 − Create a function. Step 2 − In this function, use ...
Read MoreSwift Program to Multiply two Matrices by Passing Matrix to a Function
In this article, we will learn how to write a swift program to multiply two matrices by passing the matrix to a function. A matrix is a mathematical structure in which the elements are present in rows and columns format. For example, the first element is present at the a00 location, the second at a01, and so on. So to multiply two matrices, we multiply the mth row of the first matrix by an nth column of the second matrix and add the products. This will create an element at the mth row and nth columns of the resultant matrix. ...
Read MoreSwift Program to initialize and print a complex number
In this article, we will learn how to write a swift program to initialize and print complex numbers. Complex numbers are those numbers which express in the form of x+yi, where x and y are real numbers and ‘i’ is an imaginary number known as iota. Alternatively, we can say that a complex number is a combination of both real and imaginary numbers. For example 1+2i, 1-3i, etc. In Swift, we use a struct to create complex numbers. Algorithm Step 1 − Create a structure using the struct keyword. Step 2 − In this structure, create two properties ...
Read MoreSwift Program to get the imaginary part of the given complex number
In this article, we will learn how to write a swift program to get the imaginary part of the given complex number. Complex numbers are those number which express in the form of x+yi, where x and y are real numbers and ‘i’ is an imaginary number known as iota. For example: 1+2i, 1-3i, etc. Here we use the following methods to get imaginary part − Using function Without using function Method 1: Using function To get the imaginary part of the complex number we create a function which takes struct object as a parameter and return the ...
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