In [4]:
from IPython.display import display_pretty
bool_
Boolean (True or False) stored as a byteint_
Default integer type (same as C long; normally either int64 or int32)intc
Identical to C int (normally int32 or int64)intp
Integer used for indexing (same as C ssize_t; normally either int32 or int64)int8
Byte (-128 to 127)int16
Integer (-32768 to 32767)int32
Integer (-2147483648 to 2147483647)int64
Integer (-9223372036854775808 to 9223372036854775807)uint8
Unsigned integer (0 to 255)uint16
Unsigned integer (0 to 65535)uint32
Unsigned integer (0 to 4294967295)uint64
Unsigned integer (0 to 18446744073709551615)float_
Shorthand for float64.float16
Half precision float: sign bit, 5 bits exponent, 10 bits mantissafloat32
Single precision float: sign bit, 8 bits exponent, 23 bits mantissafloat64
Double precision float: sign bit, 11 bits exponent, 52 bits mantissacomplex_
Shorthand for complex128.complex64
Complex number, represented by two 32-bit floats (real and imaginary components)complex128
Complex number, represented by two 64-bit floats (real and imaginary components)
In [5]:
import numpy as np
a = np.float32(1.)
b = np.int_([1,2,3.1])
c = np.arange(1, 10, dtype=np.uint8)
d = a.astype(np.uint16)
display_pretty(a, b, c, d, d.dtype)