defround_to_two_decimal_places(number):return'{:.2f}'.format(number) 1. 2. 以上代码定义了一个名为round_to_two_decimal_places的函数,它接受一个数字作为输入,并返回保留两位有效数字并自动补0的结果。 示例 假设我们有一个数值列表[0.123, 1.234, 12.345, 123.456, 1234.567],我们希望将每个数值保留两...
Now, let’s round this value to two decimal places. We use the round() method. The round() method. lets you round a value to the nearest integer or the nearest decimal place. We also print the amount each friend has to contribute toward dinner to the console: rounded_value = round(...
这样,可以方便地在不同的输入下调用。 defround_to_two_decimal_places(num):""" 将给定数字四舍五入到两位小数。 :param num: 需要四舍五入的数字 :return: 四舍五入后的数字 """returnround(num,2)# 示例调用result=round_to_two_decimal_places(2.71828)print(result)# 输出结果为 2.72 1. 2. 3....
Like for example, in the above code, x = 1.234. The programmer needs to print only two decimal places after the decimal point i.e. x value should be 1.23. So for this purpose, we can use the round() function. Round to Two Decimals using round() Function Theround()function is a b...
Learn how to round a number to 2 decimal places in Python for improved precision using techniques like round(), format(), and string formatting techniques.
Why will numpy.round will not round my array? Solution: It is assumed that the array elements need to be rounded to a specific number of decimal places. Here is a demonstration on how to accomplish this: # sample array to work with ...
from decimal import * # It sets the rounding mode toROUND_CEILING. getcontext().rounding = getattr(decimal, 'ROUND_CEILING') # It sets the precision of the decimal module to 10. getcontext().prec = 10 # Converting the integer 9 to a string and then converting it to a Decimal object...
Consider the same decimal number we used in the previous section: x =3.14159 Let's use theformat()to roundxto two decimal places: rounded_x ="{:.2f}".format(x) Therounded_xvariable would now hold the value3.14. Examples Take a look at a few more examples of using theformat()method...
ROUND_UP: Always round away from zero. 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 neares...
In the following example, you round the first column of df to one decimal place, the second to two, and the third to three decimal places: Python >>> df.round({"A": 1, "B": 2, "C": 3}) A B C 0 0.6 0.70 -0.238 1 0.1 -0.41 -0.556 2 0.0 -0.50 -0.142 If you need...