Two of the most important types of groups that occur in physics are unitary groups and orthogonal groups.

In this section we will examine BASIC's primary statement for repeating a string of statements under program control: the FOR statement. Another statement, the NEXT statement, is always used with a FOR statement.

the milner of Brignall for that he doth usually keep in the back beck a fishlock in the river called Gill Beck, below his mill and the forebeck of another fishlock [sic] above the mill, whereby he taketh and destroyeth much fish, to wit —routs, at his pleasure, and taketh, etc. divers fish when they are kipper and out of season;

[S]he [Edwina, mother of Tennessee Williams] was indeed Amanda [Wingfield, character in Williams' play The Glass Menagerie] in the flesh: a doughty chatterbox from Ohio who adopted the manner of a Southern belle and eschewed both drink and sex to the greatest extent possible.