This example shows round with different numbers. Without precision, it rounds to nearest integer. Note the bankers rounding for 0.5 cases. With precision argument, it rounds to specified decimal places. The function returns a float even when rounding to whole numbers with precision specified. ...
Pythonround()Function ❮ Built-in Functions ExampleGet your own Python Server Round a number to only two decimals: x =round(5.76543,2) print(x) Try it Yourself » Definition and Usage Theround()function returns a floating point number that is a rounded version of the specified number, ...
The round() Function in Python: Example Here, we take a look at how you can use the Python function round() next time you need it: Code # Rounding off integers using round() print("Round integer 33: ") print(round(33)) # Rounding off floating point, to show that at 0.5, it ro...
The ROUND() function is, obviously, most commonly used when you need to round a number to the nearest integer. For example, if you want to calculate the average of a set of numbers, you might need to round the final value up or down so that it’s an integer. While a computer won...
The NumPy function uses the round half to even strategy, just like Python’s built-in round() function. For example, the following code rounds all of the values in data to three decimal places: Python >>> np.round(data, decimals=3) array([[-0.69 , -2.105, -0.788, 0.934], [ ...
可以用round()函数对数字进行舍入: a=15.5652645 print(round(a,2)) 1. 2. 只需指定需要舍入到小数点后几位。 自定义精度的数字 很多情况下会用到自定义精度的浮点数。 可以处理用户自定义精度数的 decimal 模块。 这样导入模块并使用: from decimal import * ...
54.round(number[, ndigits]): 对一个数进行四舍五入。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 x = 3.14159 print(round(x, 2)) # 输出:3.14 55.set([iterable]): 创建一个集合。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 iterable = [1, 2, 3] s = set(iterable) ...
第一个参数 function 以参数序列中的每一个元素调用 function 函数,返回包含每次 function 函数返回值的新列表。 map(function, iterable, ...)function -- 函数iterable -- 一个或多个序列Python 2.x 返回列表。Python 3.x 返回迭代器。 max() max() 方法返回给定参数的最大值,参数可以为序列。
Note The behavior of round() for floats can be surprising: for example, round(2.675, 2) gives 2.67 instead of the expected 2.68. This is not a bug: it’s a result of the fact that most decimal fractions can’t be represented exactly as a float. ...
Note The behavior of round() for floats can be surprising: for example, round(2.675, 2) gives 2.67 instead of the expected 2.68. This is not a bug: it’s a result of the fact that most decimal fractions can’t be represented exactly as a float. ...