Job Outlook. Excellent. Respiratory therapists provide care and treatment for patients suffering from breathing and cardiopulmonary difficulties. They may also provide emergency medical care for patients who have experienced asphyxiation, heart attacks, or shock.
0 is a number alone or not. if you put 0 by itself its both a number and a digit.
These digits all have a numeric value ranging from 0 to 9. In the Unicode character properties, any code point with the general category of Decimal Number also has the Digit character property. In other words, digit=Yes is just an alias for General Category=Decimal Number, or in fact for gc=Nd.n the said document I can find the term  numeric digit . What is this? Also, what is it not? In my mind a digit is a character in the set of  0123456789 , while something numeric is a a set of characters consisting of characters in the set of  0123456789  (yes, it's the same set).