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timo86m
What do the commas mean here. Uploading a pic
The comma is use in numbers and mathematics to make to numbers easier to read. ( avoid confusion )
ironic cuzz it is confusing me I understand when it is a pair like x,y but what does it mean in the context of linear algebra?
It's just to separate numbers and letters.
Generally in linear algebra you need a double index to denote the row and column youre in (in reference to some matrix). Thats what those commas look like they are doing to me. \[a_{i,j}\]means the element in the i-th row, j-th column.
ok at first i didn't see it as subscripts. That sucks. I cant tell.
I could havve told if i'd realize it subscripts. The book sucks.
Actually, there is more of a context. Sometimes it denotes subscripts, however, it can also denote points on a parabola. In general, it is to separate quantities (e.g terms from their subscripts.)
thurs letturs in math?!?!!?!?
ok that clears a lil confusion thanks :)
row by colum i,j So |dw:1361767828250:dw| that would be? |dw:1361767875622:dw| right?
1st row, second column would be the 4.
aaa ok sorry my mind is not working right just now lol.
aaaa ok i think i get it now thank you :D BTW I am doing this on my own. Not a class or anything. Just wanna study linear algebra Downloaded this book and am reading it http://joshua.smcvt.edu/linearalgebra/ Bearly on page 24
I finally rented an actual book gonna give that a read instead