Round away from zero if last digit after rounding towards zero would have been 0 or 5; otherwise round towards zero. 如果rounding之后,最后的数字是0或5,就向UP方向(远离0的方向)舍入;否则,就像靠近0的方向舍入。 >>> Decimal('1.204').quantize(Decimal('.00'), rounding=ROUND_05UP) Decimal('...
We again got the corresponding integers to the floats in float_list. Great! Example 3: Convert List from Float to Integer using NumPy ArrayIn this third and final example, we will use Python’s NumPy library to convert the list of floats to integers. First, though, we will need to ...
rounded_number = round(float_number) integer_number = int(rounded_number) # Or simply: int(round(float_number)) print(integer_number) Output: 8 You can refer to the below screenshot to see the output. Theround()function rounds to the nearest integer. If the decimal part is exactly 0.5,...
round()函数可以接受两个参数,第一个参数是要进行截断的浮点数,第二个参数是要保留的小数位数。为了截断浮点数后面的小数,可以将小数部分与整数部分相加后取整数部分。具体实现如下: 代码语言:txt 复制 import math def truncate_float(num, decimal_places): integer_part = int(num) # 获取整数部分 decimal...
Python provides tools that may help on those rare occasions when you reallydowant to know the exact value of a float. Thefloat.as_integer_ratio()method expresses the value of a float as a fraction: >>> >>>x=3.14159>>>x.as_integer_ratio()(3537115888337719, 1125899906842624) ...
string version of everything it displays. For floats, ``repr(float)`` rounds the true decimal value to 17 significant digits, giving : Python 使用内置的 :func:`repr` 函数获取它要显示的每一个对象的字符串版 本。对于浮点数, ``repr(float)`` 将真正的十进制值处理为十七位精度,得 ...
而相比之下,整数则完全不需要担心这样的精度换算问题,这也是计算机语言中,需要特地区分整形(integer)和浮点型(float)的原因。Python中,选择用8 Byte=64 bit的存储空间,来表示浮点类型float(等价于C语言中的double类型)。并且,受益于更高效的编码,从数据的表示范围来看, 浮点数可以表示的最大范围要远大于整形。 那么...
A: Python'sint()function does not support the conversion of a complex number to an integer. Attempting to do so will raise a TypeError. Q: What is the difference betweenfloor()andint()when converting a float to an int? A: Thefloor()function will always round down to the nearest integer...
ROUND_CEILING: Always round towards positive infinity. With the decimal module, you can round numbers to the desired precision using the .quantize() method. In the example below, the ROUND_UP method has been used to round up the decimal to the nearest integer away from zero. You can achiev...
[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-CpHZaMuP-1681961425703)(https://gitcode.net/apachecn/apachecn-cv-zh/-/raw/master/docs/handson-imgproc-py/img/efd87a74-cc48-46bf-81df-ece24e32e7f8.png)] 总结 在本章中,我们讨论了基于数学形态学的不同图像处理技术。