(Solved) Help with please these are hard

;

' Write a function called threshold that determines the number of terms required for the sum

In other words, your output arguments are terms that gives the number of n required for

sum to exceed a limit; and total that gives that sum.'

[Rik]

Why did you edit away parts of your question? That is very rude.

[Rena Berman]

(Answers Dev) Restored edit

Answer 1

[Torsten]

function [n,summa] = threshold(limit)
summa = 0;
n = 0;
while summa <= limit
  n = n+1;
  summa = summa + 5*n^2 - 2*n;
end

[Torsten]

I edited my answer.

Answer 2

[Nikita Agrawal]

function [number_of_terms] = threshold(limit)
    T = 0;
    k=1
    while T < limit
        T = T + 5*k*k-2*k; 
        k = k+1;
    end
    number_of_terms=k
end