MATLAB question  For input vector x, write a function to check whether there exists exactly 4 elements in x which are divisible by 3.

Return co-ordinate 1 from (vector 3 1 4 2). In Racket

Using a built-in function, create a vector vec which consists of 20 equally spaced points that range of -pi to +pi in MATLAB

Play and practice all the functions that we listed here.  What I would like you to do is to first create three vectors---a logic vector, a double vector, and a character vector, for example, x1 = c( TRUE, FALSE, TRUE) x2 = c( 0, -2.5, 1, 3, 5.9 ) x3 = c( "a1", "a2", "za", "zz", "0", "1") and apply each function to all three vectors to see what would happen. If the function requires more than one input x, then you just create other objects as needed. sum (x) sum of the elements of x prod (x) product of the elements of x max (x) maximum of the elements of x min(x) minimum of the elements of x which. max (x) returns the index of the greatest element of x which. min(x) returns the index of the smallest element of x range (x) id. than c (min(x), max (x)) length (x) number of elements in x mean (x) mean of the elements of x median (x) median of the elements of x   round (x, n) rounds the elements of x to n decimals rev…

Write a function to nd the prime factors of an input number, not 0. The function should take an integer and output a vector whose entries are the prime factors of the input. These entries can be repeated ie. if you multiply all the entries you should get the original number. If the input equals to 0, print an error and output the empty vector [ ]. If the input equals to 1, output just the number 1. Do not use the Matlab function factor() to solve this problem. 1

Write an inline function to compute the perimeter of a rectangle of length l and width w (both l and w integers.)

Matlab

Course: Introduction to MATLAB Programming initials are: F . S