DES works by using the same key to encrypt and decrypt a message, so both the sender and the receiver must know and use the same private key. Once the go-to, symmetric-key algorithm for the encryption of electronic data, DES has been superseded by the more secure Advanced Encryption Standard (AES) algorithm.
The first two parameters of the ellipse function are the beginning x and y coordinates. The last two are the width and height of the ellipse. The second ellipse starts at (200px, 200px) and has a width and height equal to mouthS. We are given mouthS as 30, therefore the mouth is 30 pixels wide.
We call it
functional dependencies.
A functional dependency which is also commonly known as a
database dependency occurs in a database when info stored in the same database
determines other information stored in the same table. Knowing the value of a
set of attribute is enough to tell you the value of another set of attributes.
<h2>Solution :</h2>
The given problem is solved in Python.
def ComputeSquare():
side = float(input('Enter the side of the square: '))
if side > 0:
perimeter = 4 * side
area = side * side
print('Perimeter of the square is:',
perimeter, 'unit.')
print('Area of the square is:', area, 'square unit.')
<h3> else:</h3>
print('Invalid input.')
ComputeSquare()
<h2>Explanation :-</h2>
- In this program, we create a function ComputeSquare() to calculate the perimeter and area of a square.
- The function asks the user to enter the side of the square. The side is then stored in a variable.
- Now, we check whether the side is greater than 0 or not using if-else statement.
- If the condition is true, the perimeter and area is calculated which is displayed using print() statement.
- If the condition is false, the else blocks executes printing the error message.
<h3>Refer to the attachment for output.</h3>
Answer:
nothing
Explanation:
Because the return type of the function is void. void means does not return any thing.
The syntax of the function:
type name( argument_1, argument_2,......)
{
statement;
}
in the declaration the type define the return type of the function.
it can be int, float, double, char, void etc.
For example:
int count( int index);
the return type of above function is int. So, it return integer.
similarly,
void count(int index);
it return type is void. So, it does not return any thing.
