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.
positive infinity is converted to the string Infinity. negative infinity is converted to the string -Infinity. If the number is an integer, the number is represented in decimal form as a number with no decimal point and no leading zeros, preceded by a minus sign (-) if the number is negative.