Problem 49637. Matrix Pattern 10

Doddy Kastanya

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Find the pattern for the element of the matrix. Hint: use the "ceil" and "floor" functions.
mat_pattern(2) = [
     5     0
    14     9];
mat_pattern(3) = [
     5     0    -6
    14     9     3
    24    19    13];

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Last Solution submitted on Apr 20, 2026

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William on 27 Dec 2020

Doddy -- I think the bottom row of y_correct in problem 4 (x = 7) is incorrect.

Doddy Kastanya on 27 Dec 2020

Dear William,
I have checked again and they are correct. By the way, the test cases have been checked by MathWorks before I can publish the problem. If you already get a generic formula for the previous cases, it should work for x=7 as well. Hint: There are two other mathematical constants involved in the solution.

Yunpeng Teng on 7 Jan 2021

I think when x=7,the y(7,1)is 62 not 61

Rafael S.T. Vieira on 30 Oct 2022

tip: pi and e are used as factors.

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