Question

Morse code is used to send messages. Each symbol is represented by a series of dots and dashes. Would a maximum of four dots and/or dashes be sufficient?

Answer 1

`"Yes"`

Explanation:

`"We have 2 possibilities : dots and dashes."`
`"This means that a series of n dots/dashes yields "2^n"` `"combinations."`
`"So if we let n go from 1 to 4 we have : "2^1 + 2^2 + 2^3 + 2^4`
`=30 " possible symbols."`
`"The alphabet is 26 letters, so we have 4 symbols left for"`
`"punctuation."`
`"I don't know what is done with digits 0,1,2, ...,9 though."`