NumPy uses a character to represent each of the following data types, which one?
i = integer
@(1) = boolean
@(1) = unsigned integer
@(1) = float
@(1) = complex float
@(1) = timedelta
@(1) = datatime
@(1) = object
@(1) = string
i = integer
b = boolean
u = unsigned integer
f = float
c = complex float
m = timedelta
M = datatime
O = object
S = string