📜  numpy.finfo()函数– Python

📅  最后修改于: 2022-05-13 01:54:31.755000             🧑  作者: Mango

numpy.finfo()函数– Python

numpy.finfo()函数显示浮点类型的机器限制。

代码#1:

# Python program explaining
# numpy.finfo() function
           
# importing numpy as geek 
import numpy as geek 
       
gfg = geek.finfo(geek.float32)
     
print (gfg)

输出 :

Machine parameters for float32
---------------------------------------------------------------
precision =   6   resolution = 1.0000000e-06
machep =    -23   eps =        1.1920929e-07
negep =     -24   epsneg =     5.9604645e-08
minexp =   -126   tiny =       1.1754944e-38
maxexp =    128   max =        3.4028235e+38
nexp =        8   min =        -max
---------------------------------------------------------------


代码#2:

# Python program explaining
# numpy.finfo() function
           
# importing numpy as geek 
import numpy as geek 
       
gfg = geek.finfo(geek.float64)
     
print (gfg)

输出 :

Machine parameters for float64
---------------------------------------------------------------
precision =  15   resolution = 1.0000000000000001e-15
machep =    -52   eps =        2.2204460492503131e-16
negep =     -53   epsneg =     1.1102230246251565e-16
minexp =  -1022   tiny =       2.2250738585072014e-308
maxexp =   1024   max =        1.7976931348623157e+308
nexp =       11   min =        -max
---------------------------------------------------------------