In [1]:

    

f = 256.0


    

In [2]:

    

print(f.hex())


    

    




0x1.0000000000000p+8

In [3]:

    

print(type(f.hex()))


    

    




<class 'str'>

In [4]:

    

print(256.0.hex())


    

    




0x1.0000000000000p+8

In [5]:

    

print(0.5.hex())


    

    




0x1.0000000000000p-1

In [6]:

    

print(42.195.hex())


    

    




0x1.518f5c28f5c29p+5

In [7]:

    

i = 256


    

In [8]:

    

# print(i.hex())
# AttributeError: 'int' object has no attribute 'hex'


    

In [9]:

    

s = '0x1.0000000000000p+8'


    

In [10]:

    

print(float.fromhex(s))


    

    




256.0

In [11]:

    

print(type(float.fromhex(s)))


    

    




<class 'float'>

In [12]:

    

print(float.fromhex('0x1p+8'))


    

    




256.0

In [13]:

    

print(float.fromhex('1p+8'))


    

    




256.0

In [14]:

    

print(float.fromhex('0x100'))


    

    




256.0

In [15]:

    

print(float.fromhex('100'))


    

    




256.0

In [16]:

    

print(float.fromhex('0xf2.f8p-10'))


    

    




0.237274169921875

In [17]:

    

print((15 * 16**1 + 2 * 16**0 + 15 * 16**-1 + 8 * 16**-2) * 2**-10)


    

    




0.237274169921875

In [18]:

    

import sys


    

In [19]:

    

f_max = sys.float_info.max


    

In [20]:

    

print(f_max)


    

    




1.7976931348623157e+308

In [21]:

    

print(f_max.hex())


    

    




0x1.fffffffffffffp+1023

In [22]:

    

print(float.fromhex('0x1.fffffffffffffp+1023'))


    

    




1.7976931348623157e+308

In [23]:

    

# print(float.fromhex('0x1.0000000000000p+1024'))
# OverflowError: hexadecimal value too large to represent as a float


    

In [24]:

    

# print(float.fromhex('0x2.0000000000000p+1023'))
# OverflowError: hexadecimal value too large to represent as a float


    

In [25]:

    

f_min = sys.float_info.min


    

In [26]:

    

print(f_min)


    

    




2.2250738585072014e-308

In [27]:

    

print(f_min.hex())


    

    




0x1.0000000000000p-1022

In [28]:

    

print(float.fromhex('0x1.0000000000000p-1022'))


    

    




2.2250738585072014e-308

In [29]:

    

print(float.fromhex('0x0.0000000000001p-1022'))


    

    




5e-324

In [30]:

    

print(format(float.fromhex('0x0.0000000000001p-1022'), '.17'))


    

    




4.9406564584124654e-324

In [31]:

    

print(float.fromhex('0x0.0000000000001p-1023'))


    

    




0.0