Python Program for frexp() Function

In the previous article, we have discussed Python Program for fmod() Function
frexp() Function in Python:

The mantissa and exponent of a given number are returned as a pair by the math.frexp() method (m,e).

This method’s mathematical formula: m * (2**e)

Syntax:

math.frexp(number)

Parameters:

number: This is required. A number that is either positive or negative. If the value is not a number, TypeError is returned.

Return Value:

A pair of tuple values representing the mantissa and exponent of x. (m,e). The mantissa is returned as a float, and the exponent is returned as an integer.

The Python frexp() function returns the mantissa and exponent of x as a pair if the number argument is positive or negative (m, e).

The Python frexp() function returns TypeError if the number argument is not a number.

Tip: We can easily find the Number value by taking the opposite approach, and

The formula is: Number = m * 2**e. The first argument is m, and the second argument is e.

Examples:

Example1:

Input:

Given list = [2, 4, 6, 8, 10]
Given first number = 5
Given second number = -3

Output:

The result after applying frexp() function on above given first number 5  =  (0.625, 3)
The result after applying frexp() function on above given second number -3  =  (-0.75, 2)
The result after applying frexp() function on given list element gvnlst[1] =  (0.5, 3)

Example2:

Input:

Given list = [4, 6, -7, -9]
Given first number = 8
Given second number = 2

Output:

The result after applying frexp() function on above given first number 8  =  (0.5, 4)
The result after applying frexp() function on above given second number 2  =  (0.5, 2)
The result after applying frexp() function on given list element gvnlst[3] =  (-0.5625, 4)

Method #1: Using Built-in Functions (Static Input)

Approach:

Import math module using the import keyword.
Give the list as static input and store it in a variable.
Give the first number as static input and store it in another variable.
Apply math.frexp() function to the given first number to get the mantissa and exponent of a given number and print it.
Similarly, do the same for the other number.
Apply math.frexp() function to the given list element and print it.
The Exit of Program.

Below is the implementation:

# Import math module using the import keyword.
import math
# Give the list as static input and store it in a variable.
gvn_lst = [2, 4, 6, 8, 10]
# Give the first number as static input and store it in another variable.
gvn_numb1 = 5
# Apply math.frexp() function to the given first number to get the mantissa
# and exponent of a given number and print it.
print("The result after applying frexp() function on above given first number",
      gvn_numb1, " = ", math.frexp(gvn_numb1))
# similarly do the same for the other number.
gvn_numb2 = -3
print("The result after applying frexp() function on above given second number",
      gvn_numb2, " = ", math.frexp(gvn_numb2))
# Apply math.frexp() function to the given list element and print it.
print(
    "The result after applying frexp() function on given list element gvnlst[1] = ", math.frexp(gvn_lst[1]))

Output:

The result after applying frexp() function on above given first number 5  =  (0.625, 3)
The result after applying frexp() function on above given second number -3  =  (-0.75, 2)
The result after applying frexp() function on given list element gvnlst[1] =  (0.5, 3)

Method #2: Using Built-in Functions (User Input)

Approach:

Import math module using the import keyword.
Give the list as user input using list(),map(),input(),and split() functions.
Store it in a variable.
Give the first number as user input using the int(input()) function and store it in a variable.
Apply math.frexp() function to the given first number to get the mantissa and exponent of a given number and print it.
Similarly, do the same for the other number.
Apply math.frexp() function to the given list element and print it.
The Exit of Program.

Below is the implementation:

# Import math module using the import keyword.
import math
# Give the list as user input using list(),map(),input(),and split() functions.
# Store it in a variable.
gvn_lst = list(map(float, input(
    'Enter some random List Elements separated by spaces = ').split()))

# Give the first number as user input using the int(input()) function
# and store it in a variable.
gvn_numb1 = int(input("Enter some random number = "))
# Apply math.frexp() function to the given first number to get the mantissa
# and exponent of a given number and print it.
print("The result after applying frexp() function on above given first number",
      gvn_numb1, " = ", math.frexp(gvn_numb1))
# similarly do the same for the other number.
gvn_numb2 = int(input("Enter some random number = "))
print("The result after applying frexp() function on above given second number",
      gvn_numb2, " = ", math.frexp(gvn_numb2))
# Apply math.frexp() function to the given list element and print it.
print(
    "The result after applying frexp() function on given list element gvnlst[3] = ", math.frexp(gvn_lst[3]))

Output:

Enter some random List Elements separated by spaces = 4 6 -7 -9
Enter some random number = 8
The result after applying frexp() function on above given first number 8 = (0.5, 4)
Enter some random number = 2
The result after applying frexp() function on above given second number 2 = (0.5, 2)
The result after applying frexp() function on given list element gvnlst[3] = (-0.5625, 4)

Read all the mathematical functions available in Python and understand how to implement them in your program by using the tutorial of Python Mathematical Methods Examples.