Index exceeds matrix dimensions det

2 views (last 30 days)
An Chan
An Chan on 14 Dec 2017
Edited: Jan on 14 Dec 2017
D is matrix right? why det(D) not work someone help me

Answers (2)

Ahmos Sansom
Ahmos Sansom on 14 Dec 2017
Check the condition cond(A) or try 1/det(A):
Read:
Or Wiki!

Jan
Jan on 14 Dec 2017
Edited: Jan on 14 Dec 2017
You have provided very few information, such that the readers have to guess. My idea:
You have defined "det" as a variable before:
X = randi([1, 100], [3, 3]);
det(X);
...
det = ones(2, 2);
det(X) % Indices out of range
Check this by typing into the command window:
dbstop if error
Then run the code again and when it stops, check what "det" is:
which det -all
If this is the problem, the solution is easy: Do not shadow built-in functions by local variables.

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