The real difference between float32 and float64

a = np.array([0.123456789121212,2,3], dtype=np.float16)
print("16bit: ", a[0])

a = np.array([0.123456789121212,2,3], dtype=np.float32)
print("32bit: ", a[0])

b = np.array([0.123456789121212121212,2,3], dtype=np.float64)
print("64bit: ", b[0])

• 16bit: 0.1235
• 32bit: 0.12345679
• 64bit: 0.12345678912121212