Civil Engineering Reference
In-Depth Information
1
r
b.
d
r
r
2
+
1
−
1
1
c.
sin
r
cos
r
d
r
−
1
1
1
r
2
s
d.
d
r
d
s
(
r
3
+
s
2
)
−
1
−
1
6.38
Repeat Problem 6.37 using three-point Gaussian quadrature. Are the results
converging to the exact solutions?
6.39
The integral
1
(
r
3
2
r
2
+
+
1) d
r
−
1
can be evaluated exactly by using two-point Gaussian quadrature. Examine the
effect on the result if three-point integration is applied.
