Read: text, Part II ("The Finite Element Method"):

• Chapter 7 thru 7.5
• Chapter 8 - skim; read 8.7, 8.8
• Chapter 9 thru 9.2

Do: "Problem 42" Node and Element files are in the ENGS 105 Library, in the data section, folder hw42.

Specific files are:

• node file: hw5.nod ( I, x(I), y(I) )
• element incidence file: hw5.ele1 (L, in(L, 1), in(L, 2), in(L, 3), in(L, 4) )

In that incidence file there is an extra incidence in(L, 4) (=1 in each case) for each element, which should be ignored; it is not needed here.