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How to round to two decimals in Python?
ItsMyCode |
This tutorial will learn how to round to two decimals in Python using
round() and format() methods.When you deal with mathematical calculations in Numpy or Python, you will often get a lot of decimal values during the calculation. There are 2 ways to round off the decimals in Python. Let us take a look at both approaches in detail.
The
round() method returns the floating-point number, the rounded version of a specified number with the specified number of decimals.Syntax – round(number, ndigits)
Example – Round to two decimal places
# integer round off
print("Integer round off Mid value ",round(7))
# Python code to round off floating number using default value
print("Floating round off ",round(7.7))
# Python code to round off floating number with mid value
print("Floating round off Mid value ",round(7.5))
# floating number round to two decimal places
distance= 4.3847594892369461
print ("The total distance is ", round(distance,2))Output
Integer round off Mid value 7
Floating round off 8
Floating round off Mid value 8
The total distance is 4.38*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. See Floating Point Arithmetic: Issues and Limitations for more information.
You can use the
format()method to handle the precision of the floating-point numbers, and there are many ways to set the precision of the number in Python.Syntax – string.format(value)
Alternatively, *Using “
%”:- * “%” operator is used to format as well as set precision in Python.# Python code to round to two decimals using format
# initializing value
distance= 4.7287543
# using format() to print value with 2 decimal places
print ("The value of number till 2 decimal place(using format()) is : ",end="")
print ("{0:.2f}".format(distance))
# using "%" to print value with 2 decimal places
print ("The value of number till 2 decimal place(using %) is : ",end="")
print ('%.2f'%distance)Output
The value of number with 2 decimal place(using format()) is : 4.73
The value of number with 2 decimal place(using %) is : 4.73The post How to round to two decimals in Python? appeared first on ItsMyCode.
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