The phrase "alphabetical characters" is correct and can be used in written English.
It refers to any letters of the alphabet as opposed to numbers, symbols, or other characters. Example: Please make sure your password contains at least eight characters, including both alphabetical and numerical characters.
Moreover, they cannot display a whole book-size page of text, so Minsky included a second screen on his computer which had room for six thousand alphabetical characters, so that children could edit their compositions on it.
The latter part contains the strange myth of how Odin acquired the magical power of the runes (alphabetical characters) by hanging himself from a tree and suffering hunger and thirst for nine nights.
Carlos S. Glidden, an inventor who frequented the machine shop, became interested in the device and suggested that it might be adapted to print alphabetical characters as well.
Statistically different groups are denoted by different alphabetical characters in corresponding bar graphs.
The proposed descriptor preserves the alphabetical characters (e.g A, a, B, b, etc), special characters (e.g. ']',']'), and punctuations (e.g '.' ',') from both words.
Subjects were asked to indicate character repeats during a continuous serial display of randomly assembled alphabetical characters (n = 26) by pressing a key on a button box.
Further, about 60 diagnostic codes are used by MSP that are not in the ICD-9 lexicon, such as xya, where x and y are digits, and "a" is an alphabetical character.
You will notice the equals sign is an alphabetical character above "CALC" Press "shift" then "CALC", which will perform the SOLVE operation.
Also, it includes non-alphabetical characters such as /,, - and +.
Each query line must contain a sequence tag to be searched at the beginning of the line, optionally followed by a non-alphabetical character and arbitrary data on the rest of the line, which will be copied verbatim in the output.
Groups of wagons of the same design are classed together by a multiple character alphabetical code, initially in a system restricted to Victoria only, but from 1979 the Railways of Australia four letter coding was introduced.
