Find the absolute value of the values in x using two methods. Store the absolute values as the vector y using either method. a. Using the built-in function for absolute value. b. Using the built-in function for finding the sign of a value. (This will require some thought and math)

Given a vector of real numbers r = (r1, r2, ..., rm). We can standardize the vector using the formulation: vi = "im, where m ri-m is the mean of the vector r, and s is the standard deviation of r. The vector v = (v1, v2, ..., Un) will be the scaled vector. Write a Python function scale_vec (r) that takes the vector r as input and returns the scaled vector v. Sample inputs and outputs: ● Input: np.array([1, 3, 5]), output: [-1.22474487 0. 1.22474487] • Input: np. array([3.3, 1.2, -2.7, -0.6]), output: [1.35457092 0.40637128 -1.35457092 -0.40637128] Hint: Use numpy.mean and numpy.std with default parameters. # Write your function here. Let's test your function. [ ] import numpy as np print (scale_vec (np.array([1, 3, 5]))) print (scale_vec (np.array([3.3, 1.2, -2.7, -0.6])))

Describe an efficient way of putting a VECTOR rep­resenting a deck of n cards into random order in C++. You may use the function randomlnt(n), which returns a random number between 0 and n-1, inclusive. Your method should guarantee that every possible ordering is equally likely. What is the run­ning time of your function?

Write a Java Program to print a 2D matrix in the Spiral format. You can assume the 2D matrix is your own.

Help with this. Solve the Heads-or-Tails problem in C or C++. Read the H-or-T data from either a file or from STDIN. Reportthe result and related statistics to STDOUT. Report any errors to STDERR:a. In an effort to find something to do during self-quarantine, your friend flips a coin many times andcarefully records the result of each flip in a character vector using either H or T. Write a functionprogram called longestRun that reads these characters from a file and then analyzes them to find thelargest number of consecutive heads or tails. It must return/display two values: (1) the numbercorresponding to how many max consecutive heads or tails were thrown in a row and (2) thecharacter H or T depending upon whether it was Heads or Tails that was thrown the most times. Inthe event of a tie for the longest run, return the character B for both     the text file is  HTHHTTTHHTHHHTHTHTHHHHHTTHHHHHHHHHHHHTTTTTTTTTH

Write a function in matlab that takes a matrix with m rows and n columns and returns the sum of all of the odd numbers inside of that matrix.