Question about Casio FX-115ES Scientific Calculator
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Posted on Jan 02, 2017
SOURCE: cofactor matrix
the cofactor (C) of Matrix (A) = (det(a) times (A)^-1)t
Enter a matrix for (MatA) AC
shift 4 7 gives det(_
shift 4 3 shows det(a )<-end Paren
= x shows ansx
shift 4 3 shows ansxMatA -1x
= you'll see a Matrix AC to get out
shift 4 8 gives Trn(
shift 4 6 shows Trn(MatAns) =
The Matrix graph shows all the Cofactors
Posted on Jun 20, 2009
Press MODE 6 to get into matrix mode. Note: do this only once. If you do it again, it will erase all your matrices. Pick the matrix, set its dimension, then the calculator will put up a screen allowing you to enter/edit the matrix elements. At any time you're in matrix mode, press SHIFT 4 to bring up the matrix menu.
All this is explained in the manual beginning on page E-57. If you've misplaced the manual, you can download a copy from
Posted on Nov 08, 2010
SOURCE: How i do matrix
1. press mode 2. select the option matrix (6) 3.select matrix A,B or C 4 select (m x n) 5 input matrix 6 repeat steps1-5 if u are using more than 1 matrix. (select another matrix (A,B or C) in step 3) 7 press shift and 4 and select the required functions. (mat A x mat B or det mat A etc..)
Posted on Jan 09, 2011
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