Erlang Programming/Variables

Variables in Erlang Technically there are no variables in Erlang in the sense of multiple assignment. There are Dummy Variables which can take matching values in functions. Once matched their values do not change. Variables in erlang must start with a Capital letter from the Latin 1 character set. Latin-1 have the following classifications in Erlang: Decimal Example Type of character -------------------------------------------------- 0 - 31 Control character 32 Space 33 - 47 Punctuation 48 - 57 0-9 Digit 58 - 64 Punctuation 65 - 90 A-Z Uppercase 91 - 96 Punctuation 97 - 122 a-z Lowercase 123 - 127 Punctuation Decimal Example Type of character -------------------------------------------------- 128 - 159 Control characters 160 - 191 - ¿ Punctuation 192 - 214 À - Ö Uppercase × Punctuation 216 - 222 Ø - Þ Uppercase 223 - 246 ß - ö Lowercase 247 ÷ Punctuation 248 - 255 ø - ÿ Lowercase Examples of variables 19> ß = 1. ** exception error: no match of right hand side value 1 20> Þ = a. a 21> A = ß. ß Explanation Þ is a capital letter so it can be a variable. ß is not a capital letter so it can not be a variable, but it can be a symbol value.