More Matrix Arithmetic; To Multiply A Matrix And Vector - HP 49G User Manual

More matrix arithmetic

6LPSOH PDWUL[ DULWKPHWLF LV FRYHUHG LQ FKDSWHU  RI WKH +3  * 8VHUªV
*XLGH 7KLV VHFWLRQ FRYHUV VRPH RI WKH RWKHU DULWKPHWLF RSWLRQV
To change the sign of each element in a matrix
 3UHVV w_
 :LWK WKH FXUVRU EHWZHHQ WKH SDUHQWKHVHV HQWHU RU VHOHFW WKH PDWUL[
 3UHVV \

To multiply a matrix and vector

 (QWHU RU VHOHFW WKH PDWUL[
 3UHVV Œ
 (QWHU RU VHOHFW WKH YHFWRU
7KH QXPEHU RI HOHPHQWV LQ WKH YHFWRU PXVW HTXDO WKH QXPEHU RI
FROXPQV LQ WKH PDWUL[
 3UHVV \
To divide an array by a square matrix
 (QWHU RU VHOHFW WKH DUUD\
 3UHVV z
 (QWHU WKH VTXDUH PDWUL[
7KH QXPEHU RI URZV LQ WKH PDWUL[ PXVW HTXDO WKH QXPEHU RI URZV LQ
WKH DUUD\
 3UHVV \
Matrices and linear algebra Page 5-17