Learn how to round a number to 2 decimal places in Python for improved precision using techniques like round(), format(), and string formatting techniques.
python def round_to_two_decimal_places(number): return f"{number:.2f}" # 测试 print(round_to_two_decimal_places(3.1)) # 输出: 3.10 print(round_to_two_decimal_places(3.14159)) # 输出: 3.14 在这个解决方案中,我们使用了Python的f-string格式化功能,通过{number:.2f}来指定保留两位小数,并确...
# Import the Decimal class and the ROUND_UP rounding mode from the decimal module from decimal import Decimal, ROUND_UP # Create a Decimal object from a string representation of a floating-point number d = Decimal("-3.14159") # Round the Decimal object to nearest integer using the ROUND_UP...
To round all of the values in the data array, you can pass data as the argument to the np.round() function. You set the desired number of decimal places with the decimals keyword argument. The NumPy function uses the round half to even strategy, just like Python’s built-in round()...
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, ...
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Python Code: # Define the order amount as a floating-point number.order_amt=212.374# Print the total order amount with 6 decimal places.print('\nThe total order amount comes to %f'%order_amt)# Print the total order amount with 2 decimal places using string formatting.print('The total ord...
How to Round Down a Number in Python? There are various methods to round down a number in python. Let's take a look at them. Method 1: Using string format This method is applicable when you only want to show the whole number before the decimal point without altering the value. This ...
First, remember to include the parentheses around the number you’re rounding. If you don’t, Python will interpret the number as a string instead of a number and give you an error. Second, remember the type of rounding you need. By default, round() uses banker’s rounding, but you ca...
f-Strings can be used to format values in a String: value=34.185609print(f'The value is:{value:.2f}')# The value is: 34.19print(f'The value is:{value:.3f}')# The value is: 34.186 format() function in Python¶ Theformatfunction can also be used to format the output. Let's ta...