MATLAB: A function to compare prices

double nested loops

I have completed most of this question but am struggling to complete.

Best Answer

2a does not want a cell array - it wants a structure so you'd do

function str = MPR_Asgn4_Q2a_26024405(modelName, manufacturer, price) 
str.modelName = modelName;
str.manufacturer = manufacturer;
str.price = price;

For 2bi you can make a structure array

str(1) = MPR_Asgn4_Q2a_26024405(....
str(2) = MPR_Asgn4_Q2a_26024405(....
str(3) = MPR_Asgn4_Q2a_26024405(....
str(4) = MPR_Asgn4_Q2a_26024405(....
str(5) = MPR_Asgn4_Q2a_26024405(....

To get all the prices you'd use []:

allPrices = [str.price]

For 2bii, you'd use the sort function. Hint: you'll need BOTH outputs of the sort function!

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MATLAB: I’m trying to make a Simpsons Rule Function Myself

Hi Jack,

I fixed your code as much as I can. You can use the code below:

function [y] =MPR_Asgn4_Q4a_26024405(f,a,b,n)
    x = linspace(a,b,n);
    x(1)=a;
    x(n+1)=b;
    h=(b-a)/n;
    s1=0;
    s2=0;
    s3=0;
    %First if statements is to check if f is an anonymous function  
    %or an array.
    
    if length(f) >  1%array state
        %if it is a array your sub intervals will be the length of array
        %So you have to update it.
        n = length(f)-1;
        h=(b-a)/n;
        for k=3:2:length(f)-2
            s1= s1 + 2*f(k);
        end
        for k=2:2:length(f)
              s2=s2+f(k);
        end
        s3 = f(length(f));
        y = (h/3)*(f(1)+(2*s1+(4*s2)+s3));
    else%anonymous function state
        
        for k=3:2:length(f)-2
            s1= s1 + 2*f(x(k));
        end
        for k=3:2:length(f)
              s2=s2+f(x(k));
        end
        s3 = f(length(f));
        y = (h/3)*(f(x(1))+(2*s1+(4*s2)+s3));
    end
    disp(y);
end

MATLAB: I want to find the determinant for 5.5 matrix

>> syms s1 s2 s3 s4 s5 s6 s7 s8 s9 s10
>> M = [0 -s1 -s2 -s3 -s4; s1 0 -s5 -s6 -s4; s2 s5 0 -s8 -s9; s3 s6 s8 0 -s10; s4 s7 s9 s10 0];
>> det(M)
ans =
s1*s4^2*s8^2 - s1*s4*s7*s8^2 - s2*s4^2*s6*s8 + s3*s4^2*s5*s8 - s3^2*s4*s5*s9 - s2^2*s4*s6*s10 + s3^2*s5*s7*s9 + s2^2*s6*s7*s10 + s2*s3*s4*s5*s10 + s2*s3*s4*s6*s9 + s1*s2*s4*s8*s10 - s1*s3*s4*s8*s9 - s2*s3*s5*s7*s10 - s2*s3*s6*s7*s9 + s2*s4*s6*s7*s8 - s3*s4*s5*s7*s8 - s1*s2*s7*s8*s10 + s1*s3*s7*s8*s9
>> simplify(ans)
ans =
(s4 - s7)*(s3*s5 - s2*s6 + s1*s8)*(s2*s10 - s3*s9 + s4*s8)

Best Answer

Related Solutions

MATLAB: I’m trying to make a Simpsons Rule Function Myself

MATLAB: I want to find the determinant for 5.5 matrix

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