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The (i, j) entry of a matrix 2012-02-17
From Bilyaminu:
Question Bilyaminu

Find a formula for the (i,j) entry of a matrices: A= [1 2 3 4; 5 6 7 8; 9 10 11 12; 13 14 15 16]

Answered by Harley Weston.
Building an octagon-shaped deck 2006-07-11
From Maurice:
I'm a landscaper and one of my customers wants me to build her an octagon shaped deck in the back yard that has a measurement of 16 by 16. I'm not sure of the way to measure for materials required. It will be built with 2 by 6 lumber with a half inch spacing between the 2 by 6.
Answered by Stephen La Rocque.
 
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