Edit the text "texttt"
Fix typo in "availaible" to "available"
Fix mispelling of "fibonnaci" to "Fibonacci"
Fix a redundant phrase to "It is the first example which shows the power of Dynamic Programming, and a special case of a class of mathematics known as generating functions"
Correct spelling mistakes to "generating functions".
Improve sentence to "There is this following concept in mathematics: "each" etc
Add "the" before "second part".
Change "the generating in general" to "the generating function".
Fix "remeber" to "remember"
Made upper case in "If you know" to "if you know"..etc
Omit "quite" and the comma in "generating functions, in terms of their sequence".