@@ -387,6 +387,48 @@ The user need not to worry about memory management as __the process of allocatio
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389389#### 25. What are lambda expressions in Python ?
390+ A lambda function is a small anonymous function.<br >
391+ A lambda function can take any number of arguments, but can only have one expression.<br >
392+ __ Syntax:__ ` lambda arguments : expression `
393+ 394+ ```
395+ A lambda function that adds 10 to the number passed in as an argument, and print the result:
396+
397+ x = lambda a : a + 10
398+ print(x(5))
399+ # prints 15
400+ ```
401+ 402+ - Lambda functions can take any number of arguments
403+ 404+ ```
405+ A lambda function that multiplies argument a with argument b and print the result:
406+
407+ x = lambda a, b : a * b
408+ print(x(5, 6))
409+ # prints 30
410+ ```
411+ - The power of lambda is better shown when you use them as an __ anonymous function inside another function.__
412+ 413+ Say you have a function definition that takes one argument, and that argument will be multiplied with an unknown number:
414+ 415+ ```
416+ def myfunc(n):
417+ return lambda a : a * n
418+ ```
419+ 420+ Use that function definition to make a function that always doubles the number you send in
421+ 422+ ```
423+ def myfunc(n):
424+ return lambda a : a * n
425+
426+ mydoubler = myfunc(2)
427+
428+ print(mydoubler(11))
429+ # prints 22
430+ ```
431+ Note: __ Use lambda functions when an anonymous function is required for a short period of time__
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391433#### 26. What are generators in Python ?
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