Weird result with Matrix determinant

03172015, 08:16 PM
(This post was last modified: 03172015 08:16 PM by Tugdual.)
Post: #1




Weird result with Matrix determinant
I wanted to calculate the determinant of the matrix
$$\begin{pmatrix} 1 & 0 & 2 & 8 \\ 2 & 1 & 1 & 5 \\ 6 & 3 & 5 & 4 \\ 10 & 4 & 3 & 0 \end{pmatrix}$$ Using Standard number format, Prime Home says 647,000000002 Prime CAS says 647 Home is pretty close but what kind of algorithm can produce such a funny result to calculate a determinant with only integers? Other question is: do we have an explanation for Floating and Rounded Number Formats? Those are recent additions not documented in the user guide. 

« Next Oldest  Next Newest »

Messages In This Thread 
Weird result with Matrix determinant  Tugdual  03172015 08:16 PM
RE: Weird result with Matrix determinant  Damien  03172015, 10:09 PM
RE: Weird result with Matrix determinant  Dieter  03172015, 11:29 PM
RE: Weird result with Matrix determinant  Tugdual  03182015, 08:47 PM

User(s) browsing this thread: 1 Guest(s)