Variable names including numeric suffixes may not exceed 64 characters
in length, and none of the variables may exist prior to @cmd{VECTOR}.
-All the variables in a vector must be the same type.
+All the variables in a vector must be the same type. String variables
+in a vector must all have the same width.
Vectors created with @cmd{VECTOR} disappear after any procedure or
procedure-like command is executed. The variables contained in the