Very Hard matlab HELP For questions 13 create a user define

Very Hard matlab HELP !!!!

For questions 1-3 create a user defined function that takes a vector of any size as an input argument. The output should be whatever is described in the question. Each function file must use a while loop in its calculations (even if that isn’t the most efficient way to do the calculation). The built-in function length may be helpful to you. Test each function with each of the following vectors: [1 2 3 4] [5 10 15 20 25 30 35]

1) Add up all the values of the elements and returns the sum. (You can check your answer with the built- in function sum).

2) Computes the running sum. For element j, the running sum is the sum of the elements from 1 to j, inclusive. (You can check your answer with the built-in function cumsum)

3) Computes the sine of the values in the vector (assume they are in degrees)

4) Write a script that prompts the user to enter any vector. The script should then call each of the functions from questions 5-7 with the user’s vector as input. It should then multiply the values returned by all three functions and display the result to the command window.

Solution

Function for Question 1

% Following is the code of function file and name of the function is Q1

function [ sum ] = Q1(A)
%UNTITLED Summary of this function goes here
%   Detailed explanation goes here
i=1:length(A);
sum=0;
j=1;
while j<=length(A)
    sum=sum+A(j);
    j=j+1;
end

end

Function for Question 2

% Following is the code of function file and name of the function is Q2

function [] = Q2(A)
%UNTITLED Summary of this function goes here
%   Detailed explanation goes here
i=1:length(A);
sum=0;
j=1;
while j<=length(A)
    sum=sum+A(j);
    j=j+1;
    cumsum(j)=sum;
end
cumsum(:,1)=[]
end

Function for Question 3

% Following is the code of function file and name of the function is Q3

function [sine] = Q3( A )
%UNTITLED3 Summary of this function goes here
%   Detailed explanation goes here

sine=sind(A)
end

Script file for Question 4

% Following is the code of script file and name of script is Q4

A=input(\'Enter vector A\');
a=input(\'Enter operation to be proformed on A i.e. 1 for sum, 2 for cumsum and 3 for sine\');
if a==1
    Q1(A)
end
if a==2
    Q2(A)
end
if a==3
    Q3(A)
end