DRUG CLASS AND MECHANISM: Rosuvastatin is an oral drug for lowering blood cholesterol levels. It belongs to a class of drugs called HMG-CoA reductase inhibitors, more commonly referred to as  statins ..RUG CLASS AND MECHANISM: Rosuvastatin is an oral drug for lowering blood cholesterol levels. It belongs to a class of drugs called HMG-CoA reductase inhibitors, more commonly referred to as  statins ..
Natural numbers are naturally used for counting apples (and other things) so they are sometimes called counting numbers. Even some animals other than humans can count and add, so they must be natural. Minus two apples isn't very natural so negative numbers are not included.
The real natural logarithm function ln(x) is defined only for x>0. So the natural logarithm of zero is undefined. ln(0) is undefined. Since ln(0) is the number we should raise e to get 0: ex = 0. There is no number x to satisfy this equation. The limit of the natural logarithm of x when x approaches zero from the positive side (0+) is minus infinity: Natural logarithm of one âº. Natural logarithm calculator.