Ihave a question as you can see bellow and im sorry if im posting the same question just stop being petty. : )

his calculator is correct, is 6E+10, "E" is just the Engineering format, and it uses a capital E instead of the base 10, but is basically the same thing, 6x10¹⁰ in scientific notation is the same thing as 6E10 or 6E+10 in Engineering notation, just different formatting,

and of course it means 6 followed by 10 zeros, 60,000,000,000.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column