Basically, the floor function returns the number in an integer value and changes the floating value into an integer.
Python language contains many functions that are helpful for programmers to solve their tasks by using these functions. In the floor() function, we must import the math library.
Daily Life Example:
Real-life examples explain the concept of floor() function easily. Let’s assume we are at a cafe. We like to make a converter that rounds down the quantity of coffee to the nearest integer. This helps the user to estimate how much coffee we still have.
In Example 1, we import the “math” library first because we can’t use the floor function. Floor() function returns integer value after execution of code. So in this example, we simply use variables and pass math.floor() and print the variable to check the output.
number = 50.67
print ("Floor value is : ", math.floor(number))
We can see the result of math.floor() function is:
A list is a collection of several ordered or unordered items. It can be used for multiple purposes, sorting, deleting, and adding items to a list.
In Example 2, we use the math floor() method on List. We use the floor function to iterate the list item given in the example.
lst = [13.9, -33.7, 26.89, 15.56, -65.90]
for val in lst:
Floor function with List output is :
Map() is a built-in function used to process and change all the items in a list without using for loop. This method of transforming value is called mapping.
Python use map function with floor function to overcome the use of for loop. So, In Example 3, we check how both functions work.
value = [13.9, -33.7, 26.89, 15.56, -65.90]
result = map(lambda number: math.floor(number), value)
print('Result = ', list(result))
Floor() function with map() and lambda functions output is:
In Example 4, we take input from the user and check if the entered number result is in float. Python’s built-in exceptional handling displays a message if the user enters an invalid value. For Exceptional handling, we use a try statement.
number = input('Enter number to check is integer or float): ')
value = float(number)
print('Must enter a valid number.')
number = 0
print('Result is ', math.floor(value))
The output of the given an example is:
In Example 5, we use the class having the name Floor. Class contains method name getDesiredValue(). In this function, we initialized five variables that are equal to the math.floor() function and then printed this variable inside the string. Outside the class initialize the variable name obj which is equal to Floor() then pass the getDesiredValue() to obj . Because without doing the last two steps, we can’t access the class and get results.
n1 = math.floor(1.0);
n2 = math.floor(2.8);
n3 = math.floor(3.3);
n4 = math.floor(3.4);
n5 = math.floor(7.7);
print("Floor value Of Variable n1 " + str(n1));
print("Floor value Of Variable n2 " + str(n2));
print("Floor value Of Variable n3 " + str(n3));
print("Floor value Of Variable n4 " + str(n4));
print("Floor value Of Variable n5 " + str(n5));
obj = Floor()
We get the output of the given an example as:
A range of different constants is shown in the “math” library of Python. Math.pi is used to find the value of pi (3.14). “math.e” is used to find the value of e (2.71). “math.inf” means the infinite value or limitless, so the result of this function is OverflowError: cannot convert float infinity to an integer.
valuePi = math.pi
valueE = math.e
valueinfinite = math.inf
The Output of the given an example is :
In Example 7, first, we import the “NumPy” library to get our output. We initialize the 1D array, the values of the array are in float data type. After that, check the resulting print of the Array. The program’s goal is to discover the sum of array values, and the resultant total is of the floating data type value, as can be seen. Then, we have displayed the derived sum’s floor number.
Array = np.array([14.7,45.7,34.6,1.78,32.65])
# Print the Array
print("The array is: ", Array)
val = np.sum(Array)
print("Sum of array elements is: ", val)
# Print floor value of sum
print("Floor value of the sum is : ", np.floor(val))
As we can see, the example shows the output is:
The floor() method rounds a value to the nearest whole number in Python. This function only accepts integer and float values as arguments; otherwise, an error will be returned. We learned how to use the floor() function of a math module by importing it. We also used math.floor() method of lists, tuples, and the map() function in Python.
At the same time, we spoke about how to use the floor() function in Python on integers, decimals, and negative numbers. In addition, we discussed how the floor() method differs from the int() method in Python.