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# Problem 752. Is X a Fibonacci Matrix?

Solution 1933882

Submitted on 13 Sep 2019
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### Test Suite

Test Status Code Input and Output
1   Pass
x = [0 1;1 1]; tf = true; assert(isequal(isFibMat(x),tf)) clear all;

tf = 1 tf = 1 tf = 1 tf = 1

2   Pass
x = [1 0;1 1]; tf = false; assert(isequal(isFibMat(x),tf)) clear all;

tf = 1 tf = 1 tf = 1 tf = 1

3   Pass
x = [0 1;1 1]^40; tf = true; assert(isequal(isFibMat(x),tf)) clear all;

tf = 1 tf = 1 tf = 1 tf = 1

4   Pass
x = [0 1;1 1]^40+1; tf = false; assert(isequal(isFibMat(x),tf)) clear all;

tf = 0 tf = 0 tf = 0 tf = 0

5   Pass
x = [0 1;1 1]^17; tf = true; assert(isequal(isFibMat(x),tf)) clear all;

tf = 1 tf = 1 tf = 1 tf = 1

6   Pass
x = [0 1;1 1]^17-5; tf = false; assert(isequal(isFibMat(x),tf)) clear all;

tf = 0 tf = 0 tf = 0 tf = 0

7   Pass
x = [0 0 1;0 1 1;1 1 1]^3; tf = false; assert(isequal(isFibMat(x),tf)) clear all;

tf = 1 tf = 1 tf = 1 tf = 1

8   Pass
x = [0 0 1;0 1 1]; tf = false; assert(isequal(isFibMat(x),tf)) clear all;

tf = 1 tf = 1 tf = 1 tf = 1

9   Pass
x = [[0 1;1 1]^3 [5; 8]]; tf = false; assert(isequal(isFibMat(x),tf)) clear all;

tf = 1 tf = 1 tf = 1 tf = 1

10   Pass
x = uint8([0 1; 1 1]^5); tf = true; assert(isequal(isFibMat(x),tf)) clear all;

tf = 1 tf = 1 tf = 1 tf = 1

11   Pass
x = -([0 1; 1 1]^5); tf = false; assert(isequal(isFibMat(x),tf)) clear all;

tf = 0

12   Fail
x = [0 1; 1 1]^5; x(2) = nan; tf = false; assert(isequal(isFibMat(x),tf)) clear all;

tf = 1

Array indices must be positive integers or logical values. Error in isFibMat>fib_decomposition (line 27) n = n-f(end); Error in isFibMat (line 9) n = fib_decomposition(x(k)) ; Error in Test12 (line 4) assert(isequal(isFibMat(x),tf))

13   Pass
x = [4 7;7 11]; tf = false; assert(isequal(isFibMat(x),tf)) clear all;

tf = 0 tf = 0 tf = 0 tf = 0

14   Pass
for ii = 1:55 assert(true==isFibMat([0 1;1 1]^ii)) end

tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1