Write a Matlab script "pyramide.m" that asks for a number N and prints out the following pattern of asterisks (*). ** *** *** ***** **** *** ** The input number N represents the number of asterisk characters in the middle row. Use the "for" loop in your script (hint: the number of rows is 2*N-1) and the "fprintf" function to print asterisk characters.

Q1: Secret Messages  Implement a Caesar cipher to encrypt messages.

Write a for loop that will print the lower case letters of the alphabet backwards. Do not use ASCII codes.

Please explain why the answer is T.

Write a program that uses two nested for loops and the modulus operator (%) to detect and print all prime numbers from 1 to 10,000. Prime numbers are integral numbers that are only evenly divisible by themselves and one (1). Display all the prime numbers found.

In Java Write a program that prints the 128-character ASCII table. It should print the tablein eight tab-separated columns. The first column contains a "Dec" heading (fordecimal number) with the numbers 0 through 31 below it. The second columncontains the ASCII characters associated with the numbers 0 through 31. The nextcolumns contain the subsequent numbers and associated ASCII characters. See thebelow sample output for details. Be aware that that output was produced by aprogram running in a console window in a Windows environment. If you runyour program in a different environment, the first 32 characters and the lastcharacter will probably be different from what’s shown below.Note that some characters display in a non-standard manner. For example, thenumber 7 corresponds to a bell sound. You can’t see a sound, but you can see thevacant spot for 7’s character in the below table. The number 8 corresponds to thebackspace character. You can’t see a backspace, but you can see how the…

Write a program using while loop and for loops to print first 50 prime numbers in 5 lines, each line containing 10 numbers. 1. Create a program called CountCharacters.java. 2. At the top of your java file add the following documentation comments. Replace the italicized text with the appropriate content. /** @author Your Name CS 110 Section 012 Lab 9 Final Today's Date 3. Import the Scanner class and ask user to enter a line. Implement the while loop so that the user can input any number of lines and one line at a time. To stop entering lines, the user can write "quit. (Hint: Use the string method <str>.equals() in the while condition to stop the while loop OR a break keyword). 4. Implement the for loop inside the while loop to iterate through the line one character at a time to count and output the number of blank spaces, alphabetic characters, digit characters, and other characters in all the lines. You need to use different methods of character class like charAt(), isDigit(),…

What is the output of the following codes, consider each case independently? What will be the value of x after the following loop is executed? x = 0 For i = 1 To 2   For j = 1 To 3      x = x * i * j   Next j Next i

Given an int variable n that has already been declared and initialized to a positive value, and another int variable j that has already been declared, use a for loop to print a single line consisting of n asterisks. Thus if n contains 5, five asterisks will be printed. Use no variables other than n and j.

JAVA   A perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. A divisor of an integer x is an integer that can divide x evenly. Take an integer n as input from the keyboard, print true if n is a perfect number, otherwise, print false. You do not need to print any explanation, just print true or false. Use a for loop to generate the divisors. Example 1: Input: num = 28 Output: true Explanation: 28 = 1 + 2 + 4 + 7 + 14 1, 2, 4, 7, and 14 are all divisors of 28.   Example 2: Input: num = 6 Output: true   Example 3: Input: num = 496 Output: true         Example 4: Input: num = 8128 Output: true   Example 5: Input: num = 2 Output: false