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January 21st, 2014, 02:24 AM   #1
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simple matrix problem

I am not a maths guy, i am a programmer i encounted a problem and need a formula

here is a matrix

| 01 02 03 04 |
| 5 06 07 08 |
| 09 10 11 12 |
|13 14 15 16 |

well it contain numbers 1-16 its a 4x4 matrix

now i know the element 3x3 is 11
and 2x1 is 2
ect

is there a formula where if i know the axb and i get the value

for example if i have 4x3 the value is 15 how can i get 15 using a general formula.
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January 21st, 2014, 01:16 PM   #2
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Re: simple matrix problem

4(a-1) + b.
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January 22nd, 2014, 02:33 AM   #3
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Re: simple matrix problem

nice thanks
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