13.1 The area under a curve

13.2 Mean and root mean square values

13.3 Volumes of revolution

13.4 Lengths of curves

13.5 Surfaces of revolution

13.6 First moments of an arc

13.7 First moments of an area

13.8 First moments of a volume

13.9 First moments of a surface of revolution

13.10 Second moments of an arc

13.11 Second moments of an area (a)

13.12 Second moments of an area (b)

13.13 Second moments of a volume (a)

13.14 Second moments of a volume (b)

13.15 Second moments of a surface of revolution

13.16 Centres of pressure