如何在python中定义np.float128变量? [英] How to define np.float128 variable in python?

问题描述

在对问题 Python中的双精度浮点值的最高评价中?提到如果我们需要比标准浮点数更多的精度，则可以使用np.float128.但是我找不到办法.

In the most upvoted answer to the question Double precision floating values in Python? it is mentioned that we can use np.float128, if we need precision more than standard float. But I couldn't find a way to do this.

然后，在对如何声明的最高评价的答案中变量类型，Python中的C样式，建议使用键入.

Then, in the most upvoted answer to how to declare variable type, C style in python, use of typing is suggested.

但是，当我尝试使用键入将数据类型设置为整数类型值的float时，Python仍使用int数据类型.

However, when I tried to use typing to set the datatype as float for a integer type value, Python still used an int data type.

n : float=10000
print(type(n))

但是，结果仍然是:

<class 'int'>

那么，如何在python中定义np.float128类型变量?

So, How can I define np.float128 type variable in python?

推荐答案

您尝试过以下吗?

from numpy import float128

n=float128(10000)

print(type(n))

打印:

<class 'numpy.float128'>

请记住，在Windows 64位系统上使用 numpy.float128 存在一些问题(请参见

Bear in mind that there are some issues using numpy.float128 on Windows 64-bit (see numpy.float128 doesn't exist in windows, but is called from OpenGL). I have tested this code in an online Python editor.

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