The character "!" with ASCII code 33. Common names: bang pling excl (/eks' kl/) shriek ITU-T: exclamation mark, exclamation point (US). Rare: factorial exclam smash cuss boing yell wow hey wham eureka soldier INTERCAL: spark-spot. The Commonwealth Hackish, "pling", is common among {Acorn Archimedes} owners. {Bang} is more common in the USA. The occasional CMU usage, "shriek", is also used by APL fans and mathematicians, especially category theorists. Exclamation mark is used in C and elsewhere as the logical negation operation (NOT). (1998-09-17)
