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[A|I] solve that
wait thats to find its inverse.
can i not do it without the inverse say.... 1 0 1 1 -2|1 0 0 0 -3 5|-2 0 0 2 -5 12| -4
1 0 1 1 -2|1 0 1 1 -3 5|-2 0 0 2 -5 12| -4
what operation u did chris?
i just put it in a matrix.
now pivot on (1,1), (2,2) (3,3) i think
thats the originaql matrix
yep i did that
now i see u pivoted on (1,1) and (2,2)
try pivoting on (3,3)
do u mean row 1 column 1 by (1,)? and pivot? move
so pivot on 3rd row 3rd column where there is a 4 in the original matrix once u pivtoed on (1,1) and (2,2)
this is what i get |dw:1371475928708:dw| i just need to know how to solve please
okay this is what u gotta do
pivot on (3,3)
oh i see dan 815, thats guassiaon
r3-2r2 and then r3-5*3/2 r2
so u get|dw:1371476137989:dw|
now we let x5=t x4=s
thats what i mean by pivot (3,3) make (3,3) a 1 entry
yes i got the above matrix thanks im getting it now
then write (x1,x2,x3,x4,x5) in terms of s and t
thanks chris and dan
u have no idea wat u r doing dan
no no i do lol i know how to do matricies atleast xD
we learnt upto eigen values
haha. eigen values is LEGEND
but wait guys, i was doing wahat dan said 1st...smh chris what row operations u did?
for row 3 i first did 1/2 of row 3 to get (3,3) to 1
oh i see so all the rows 1st non zero should be 1 right?
dont know what ur trying to say
but we pivot from left to right.
down the matrix
that word "pivot" confuses me...just tell me wat u did for row 2 please, the operation
new row 2 = r2-r3 when we have 1 on (3,3)
so we form a 0 above the 1
now we need to peform a 0 in row 1
then u let x5=t x4=s
oh ok i see
obviously it won't be unique...
yes ofcourse lol
a quadratic solution
u said u had to make all these zero's i was like ;qieufhqierufhqrfqr
i learn now! OKAY!
i knew u cudnt make it all 000 but i was oping to just get get some unique 1s
and i thought that wud be enuff to write it as function of something
so th 3*3 part of the matrix should look like the identity matrix then? right?
<---- matrix noob
i feel like watching matrix now
loll ok thanks again..its just the concept i'm trying to grasp
yea it took me a while with what pivoting is...get to know what pivoting is. makes like simple
pivoting is like the whole principle of row reducing..
u can do this too
i call this operation the glass flip
i call it a waste of time.
i call me playing u at fifa a waste of time
=O how dare u
i will only use my goal keeper
wait do u have ps3?
i dont think so
no wait i do
how do u not know if u have one or not? LOL
lol i dunno its somehwere in the basement i didnt but it, its my bros
do u use it?
no i only play tic tac toe
iam very close to mastering it
nah if u have 2 people who know how to master it. always a draw
lol gee thankkss!!
fark that was funny
always pick x first thats the trick
wat now *****
ya but sseriously, i used to play ps3, xbod nintendo gamecube stuff.. but i dunno kinda grew out of it
then i played a lotta computer games.. stopped that too
now i just play random board games, to entertain kids when they come over
usually like monopoly, checks or chess too sometimes
i boss at chess
even though i don't look like the guy who would
r u really
i wanna learn to get better, but i dunnnoo
yea, its fun if u have a challenging opponent
have you seen that movie beautiful mind
thers this game they play with round stones and this table
good movie that
looks like that!! its a fun game
yea, never played it
these are the 2 games i want to learn, chess and that but i dont know anyone good at them
sorry to ruin the fun
but i'm having difficulty solving... x3 = -2 +5/6 -6t?
where x5=t x4=s
i'll leave u at that i gtg to bed now now cya guys!