2007-10-17 23:55:56 · 5 answers · asked by abed ulwahab t 1 in Science & Mathematics ➔ Mathematics
You need a TI-83.
1) Hit Second (yellow button)
2) Hit matrix
3) Go to the right where it says Edit.
4) Put the dimensions of your matrix (2X2, 3X2..etc) and then plug in your numbers. You'll need to used the "Enter" button a lot.
5) When your done go to "2ND" (yellow button) then next to it press the "quit" button.
6) Go back to hitting "2nd" and then "matrix" and then just stay there and press enter to use (A) and do whateva u need to do with it.
2007-10-18 00:02:47 · answer #1 · answered by Steph 2 · 0⤊ 1⤋
In mathematics, a matrix (plural matrices) is a rectangular table of elements (or entries), which may be numbers or, more generally, any abstract quantities that can be added and multiplied. Matrices are used to describe linear equations, keep track of the coefficients of linear transformations and to record data that depend on multiple parameters. Matrices can be added, multiplied, and decomposed in various ways, making them a key concept in linear algebra and matrix theory.
2007-10-18 07:07:44 · answer #2 · answered by alecxz 1 · 0⤊ 0⤋
OH god@ ppl below me.. don't u know how to multiply matrices? dude everything is not a calculator!
okay first of all for 2 matrices to be able to be multiplied, the number of columns of the first must be equal to no. of rows of the second.. and the order of the product matrix will be ( no. of rows of 1st matrix X no. of columns of 2nd matrix).
Remember that A X B is not neccesarily equal to B X A . the product matrix will be different unless it's a special case.
Now for multiplying the two.. here's the method.
take the 1st row ( horizontal group) of 1st matrix with first the 1st column of second matrix then the 2nd column of 2nd matrix. then repeat the process with 2nd row of 1st matrix. ive shown the thing below..
A = a b .......... B = p q
..... c d ................. r s
then A X B = (a*p + b*r) (a*q + b*s)
................... (c*p + d*r) (c*q + d*s)
PS. ignore the dots i used them to arrange the spacing for making the matrices look allright.
2007-10-18 07:30:31 · answer #3 · answered by gauravragtah 4 · 1⤊ 0⤋
A fascinating subject and your first 'baby steps' into the wonderful world of multi-dimensional analysis and tensor calculus.
Any other questions?
Doug
2007-10-18 07:13:33 · answer #4 · answered by doug_donaghue 7 · 0⤊ 0⤋
it does not necessarily have to be a TI-83.
other models of graphic calculators work too.
what is your question like?
2007-10-18 07:06:03 · answer #5 · answered by Himeko 3 · 0⤊ 0⤋