Default arguments allow functions to be called with fewer arguments by assigning default values if arguments are omitted. A function can have any number of default arguments, which should follow non-default arguments. Default arguments are defined using the assignment operator when defining the function and will be used if that argument is not passed to the function call, otherwise an overridden value in the call is used instead of the default.

1. Types of Arguments
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2. Types of Arguments
1. Default arguments:
 Default arguments are values that are provided while defining functions.
 The assignment operator = is used to assign a default value to the argument.
 Default arguments become optional during the function calls.
 If we provide a value to the default arguments during function calls, it overrides
the default value.
 The function can have any number of default arguments
 Default arguments should follow non-default arguments.

3. Example : Default Arguments
1. Default arguments:
def add(a,b=5,c=10):
return (a+b+c)
n=10
print(add(n))
 .

4. Example : Default Arguments
Default arguments:
def add(a,b=5,c=10):
return (a+b+c)
n=10
print(add(n))
 .
It can be called in 3 ways:
print(add(3))
#Output:18
print(add(3,4))
#Output:17
print(add(2,3,4))
#Output:9