Learn how to round a number to 2 decimal places in Python for improved precision using techniques like round(), format(), and string formatting techniques.
3.14159 rounded to two decimal places is 3.14. 1. 2.3 使用注意事项 当ndigits为负数时,round()会将数字四舍五入到最接近的10的幂,例如: num=1234rounded_num=round(num,-1)print(f"{num}rounded to the nearest ten is{rounded_num}.") 1. 2. 3. 输出结果: 1234 rounded to the nearest ten i...
# Import the math module to access math.ceil() function import math number = -3.14 rounded_up = math.ceil(number) print(rounded_up) Powered By Round up using the decimal module for precision The decimal module in Python is useful for rounding float numbers to precise decimal places. It ...
数值表达式 被四舍五入。 Numdecimalplaces 1. 可选项。数字表明小数点右边有多少位进行四舍五入。如果省略,则 Round 函数返回整数。 说明 下面的示例利用 Round 函数将数值四舍五入到两位小数: Dim MyVar, pi pi = 3.14159 MyVar = Round(pi, 2) 'MyVar contains 3.14。 1. 2. 3. Int、Fix 函数返回数...
round(5.5):rounds the float5.5to6. Example 2: Round a number to the given number of decimal places print(round(2.665,2))print(round(2.675,2)) Run Code Output 2.67 2.67 When the decimal2.675is converted to a binary floating-point number, it's again replaced with a binary approximation, ...
Python’s built-in round() function uses the rounding half to even strategy, which rounds numbers like 2.5 to 2 and 3.5 to 4. This method helps minimize rounding bias in datasets. To round numbers to specific decimal places, you can use the round() function with a second argument ...
print(round(3.447444, 2)) >>3.45 from decimal import Decimal print(Decimal('0.3') + Decimal('0.9')) >>1.2 import math #向上取
I would expect everything to be rounded to 2 decimal places, the way thefloat64(f64), andfloat(f) datatypes are in the example above. I would also expect that boolean indexing works within the range specified, according to what that dataframe shows as its values when printed. ...
round(a,2) ‘%.2f’ % a Decimal(‘5.000’).quantize(Decimal(‘0.00’)) 当需要输出的结果要求有两位小数的时候,字符串形式的:’%.2f’ % a 方式最好,其次用Decimal。 需要注意的: 可以传递给Decimal整型或者字符串参数,但不能是浮点数据,因为浮点数据本身就不准确。
Python has an in-built round() method to round off any number.It takes two parameters as input - num - The number to be rounded. decimal_places - The number of digits to be rounded off (default being 0). Let's try rounding off a number for different decimal places - # Round down...