Question 175429
How do I find the element of a(base 1),(base 2)?
<pre><font size = 4 color = "indigo"><b>
You shouldn't put the word "base" there. You should put "row 1" 
instead of "base 1" and "column 2" instead of "base 2". The 
first number in {{{a[r,c]}}}, the {{{r}}}, is the row number 
going from top to bottom, and the second number {{{c}}} is the 
column number going from left to right.  You can remember which
is which by remembring that {{{a[r,c]}}} looks like the word 
"arc".  

          C C C 
          O O O 
          L L L
          U U U
          M M M
          N N N
          # # # 
          1 2 3 
          <font face = "symbol">¯</font> <font face = "symbol">¯</font> <font face = "symbol">¯</font> 
ROW #1 <font face = "symbol">®</font> 1 <font color = "red">2</font> 3 
ROW #2 <font face = "symbol">®</font> 4 5 6 
ROW #3 <font face = "symbol">®</font> 7 8 9

The 1 is in ROW #1 and COLUMN #1, so 1 is the element {{{a[1,1]}}}
<font color = "red">The 2 is in ROW #1 and COLUMN #2, so 2 is the element {{{a[1,2]}}}</font>
The 3 is in ROW #1 and COLUMN #3, so 3 is the element {{{a[1,3]}}}
The 4 is in ROW #2 and COLUMN #1, so 4 is the element {{{a[2,1]}}}
The 5 is in ROW #2 and COLUMN #2, so 5 is the element {{{a[2,2]}}}
The 6 is in ROW #2 and COLUMN #3, so 6 is the element {{{a[2,3]}}}
The 7 is in ROW #3 and COLUMN #1, so 7 is the element {{{a[3,1]}}}
The 8 is in ROW #3 and COLUMN #2, so 8 is the element {{{a[3,2]}}}
The 9 is in ROW #3 and COLUMN #3, so 9 is the element {{{a[3,3]}}}

Your answer is the <font color = "red">red</font> one.

Edwin</pre>