Write a program in C,C++ and Java to find whether a given matrix is a lower triangular matrix or not.  A lower triangular matrix is a square matrix in which all the elements above the diagonal are zero. That is, all the non-zero elements are in the lower triangle: Input Format: The input consists of (n*n+1) integers. The first integer corresponds to the number of rows/columns in the matrix. The remaining integers correspond to the elements in the matrix. The elements are read in rowwise order, first row first, then second row and so on. Assume that the maximum value of m and n is 5.  Output Format: Print yes if it is a lower triangular matrix . Print no if it is not a lower triangular matrix

Write a program in java using two dimensional arrays. You should prompt the user toenter the number of rows and columns for your matrix. You should then prompt the userto enter values for each element of the matrix. Once the user has provided all the values for matrix, you should print the matrix and transpose of that matrix. A transpose of a matrix converts rows to columns and columns to rows.Example:Output: This program transposes a matrix.Output: Please enter the number of rows:User enters 2Output: Please enter the number of columns:User enters 3Enter value for row[0] column[0]: 9Enter value for row[0] column[1]: 1Enter value for row[0] column[2]: 2Enter value for row[1] column[0]: 72Enter value for row[1] column[1]: 3Enter value for row[1] column[2]: 6The matrix you entered is:9 1 272 3 6The transpose of this matrix has 3 rows and 2 columns and the transpose is:9 721 32 6

Prompt: In Python language, write a function that applies the logistic sigmoid function to all elements of a NumPy array. Code:   import numpy as np import math import matplotlib.pyplot as plt import pandas as pd   def sigmoid(inputArray):               modifiedArray = np.zeros(len(inputArray))               #YOUR CODE HERE:               return(modifiedArray) def test(): inputs = np.arange(-100, 100, 0.5) outputs = sigmoid(inputs) plt.figure(1) plt.plot(inputs) plt.title('Input') plt.xlabel('Index') plt.ylabel('Value') plt.show() plt.figure(2) plt.plot(outputs,'Black') plt.title('Output') plt.xlabel('Index') plt.ylabel('Value') plt.show() test()

Input a list of employee names and salaries and store them in parallel arrays.  End the input with a sentinel value. The salaries should be floating point numbers  Salaries should be input in even hundreds.  For example, a salary of 36,510 should be input as 36.5 and a salary of 69,030 should be entered as 69.0. Find the average of all the salaries of the employees.  Then find the names and salaries of any employee who's salary is within 5,000 of the average.  So if the average is 30,000 and an employee earns 33,000, his/her name would be found.  Display the following using proper labels.  i need to do this in raptor.

I need to write a program named Search.java that uses a function called search_string to check whether a string exists in the array or not. 1- The array of strings is iterated using a for loop and the value at every index is compared with the value to be searched in the array. 2- A boolean variable is set if any array value matches with the string. 3- At the end of the loop, this boolean variable is checked to determine if the array contains the string. It may be necessary to import java.util.Arrays then use Arrays.toString, String equals(). Output should be as picture shows

The Lo Shu Magic Square is a grid with 3 rows and 3 columns shown below.             The Lo Shu Magic Square has the following properties: The grid contains the numbers 1 – 9 exactly The sum of each row, each column and each diagonal all add up to the same number. This is shown below: Write a program that simulates a magic square using 3 one dimensional parallel arrays of integer type. Do not use two-dimensional array. Each one the arrays corresponds to a row of the magic square. The program asks the user to enter the values of the magic square row by row and informs the user if the grid is a magic square or not. Processing Requirements - c++ Use the following template to start your project: #include<iostream> using namespace std;   // Global constants const int ROWS = 3;  // The number of rows in the array const int COLS = 3;  // The number of columns in the array const int MIN = 1;  // The value of the smallest number const int MAX = 9;  // The value of the largest number //…

import numpy as np import torch import matplotlib.pyplot as plt Quiz Preparation Question 1. Write a function that generates a random tensor of n x n (n is the input). The output is the mean of the tensor. = 2, 4, 8, 16, ... 1024 and generate a vector 2. Write a code (for loop) that call that calls the function above with n = M(n). Plot the vector as a function of the log of n. 3. Given an n x m array write a code that replaces every element that is larger than 0.5 with 0.5. 4. The second derivative of a function can be approximated by the finite difference 1 ƒ"(x₂) = 73 (ƒ(£;+1) — 2ƒ(x;) + f(x;-1)) Given a vector f with values f = [f(xo),..., f(n) write a code that computes the approximation to f"(x) 5. The power method is a method to compute the largest eigenvalue of a matrix. Your google search is using this method every time you perform a google search. The method consists of the iteration Vj+1 = Av; || Avi|| where v; is a vector with chosen as a random vector, and A is the matrix…