**Find PI to the Nth Digit** - Enter a number and have the program generate PI up to that many decimal places. Keep a limit to how far the program will go. [[geekpradd (Python)]](https://github.com/geekpradd/PythonPi/blob/master/PythonPi.py)

[[MrBlaise (Python)]](https://github.com/MrBlaise/learnpython/blob/master/Numbers/pi.py) [[whoshuu (Python)]](https://github.com/whoshuu/Projects/blob/master/Numbers/pi.py) [[tel (Haskell)]](https://github.com/tel/Projects/blob/master/Numbers/Pi.hs) [[petehuang (Ruby)]](https://github.com/petehuang/Projects/blob/master/Numbers/pi.rb) [[atomic22 (PHP)]](https://github.com/atomic22/problem_solving/blob/master/Pi_to_Nth.php) [[quitrk (JavaScript)]](https://github.com/quitrk/LearningJS/blob/master/Numbers/00.%20Find%20PI%20to%20the%20Nth%20Digit.js) [[ScottKolo (Go)]](https://github.com/ScottKolo/GoProjects/blob/master/Numbers/pi.go) [[desertwebdesigns (Python)]](https://bitbucket.org/desertwebdesigns/learn_python/src/master/Numbers/pi.py) [[aysark (Java)]](https://github.com/aysark/Review/blob/master/Projects/src/PiToTheNth.java) [[lazynight (Python)]](https://github.com/Flowerowl/Projects/blob/master/solutions/numbers/find_pi_to_the_nth_digit.py) [[abadojack(Go)]](https://github.com/abadojack/Playground/blob/master/Projects-Solutions/Numbers/Go/pi.go) [[abadojack(Java)]](https://github.com/abadojack/Playground/blob/master/Projects-Solutions/Numbers/Java/Pi.java) [[lazy0getter(Swift)]](https://github.com/lazy0getter/codeless-code/blob/master/Swift/Projects-solutions.playground/section-1.swift)

**Find e to the Nth Digit** - Just like the previous problem, but with e instead of PI. Enter a number and have the program generate e up to that many decimal places. Keep a limit to how far the program will go. [[dhd12391 (Java)]](https://github.com/dhd12391/Projects/blob/master/Java/EToNthDigit.java) [[aseeon (Python)]](https://gist.github.com/aseeon/3f06d95f995fde7adfc2) [[lazy0getter(Swift)]](https://github.com/lazy0getter/codeless-code/blob/master/Swift/Projects-solutions.playground/section-1.swift)[[grzeswol(Ruby)]](https://github.com/grzeswol/karan_projects_solutions/blob/master/Ruby/2_euler_number.rb)[[mandeepbhutani (Python)]](https://github.com/mandeepbhutani/Sample-Projects/blob/master/FindE.py) [[chibby0ne (C)]](https://github.com/chibby0ne/Projects/blob/master/Solutions/Numbers/e_to_n_digit/e_to_n_digit.c) [[hkuchampudi (Java)]](https://github.com/hkuchampudi/MegaProject_Solutions/blob/master/Numbers/e_to_the_Nth.java)[[kingballer29 (C++)]](https://github.com/kingballer29/Programming/blob/master/e.cpp) [[viktorahlstrom (Bash)]](https://github.com/viktorahlstrom/all/blob/master/coding-problems-solved/projects-solutions/pi-to-nth.sh)

**Fibonacci Sequence** - Enter a number and have the program generate the Fibonacci sequence to that number or to the Nth number. [[MrBlaise (Python)]](https://github.com/MrBlaise/learnpython/blob/master/Numbers/fibonacci.py) [[timkaboya (Python)]](https://github.com/timkaboya/cached_fibo/blob/master/cached_fibo.py) [[whoshuu (Python)]](https://github.com/whoshuu/Projects/blob/master/Numbers/fibonacci.py) [[mayankj08 (Bash)]](https://github.com/mayankj08/Shell-Script-Collection/blob/master/calcualte_fibonacci_numbers.sh) [[tel (Haskell)]](https://github.com/tel/Projects/blob/master/Numbers/Fibonacci.hs) [[petehuang (Ruby)]](https://github.com/petehuang/Projects/blob/master/Numbers/fib.rb) [[bolcselo (C)]](https://github.com/bolcselo/Projects/blob/master/Numbers/fibonacci.c) [[atomic22 (PHP)]](https://github.com/atomic22/problem_solving/blob/master/fibseq.php) [[quitrk (JavaScript)]](https://github.com/quitrk/LearningJS/blob/master/Numbers/01.%20Fibonacci%20Sequence.js) [[luisccastillo(C#]](https://github.com/luisccastillo/Projects/blob/master/Numbers/fibonacci_sequence.cs) [[MikroMan (Java)]](https://github.com/MikroMan/Contributions/blob/master/Fibonacci.java) [[ScottKolo (Go)]](https://github.com/ScottKolo/GoProjects/blob/master/Numbers/fibonacci.go) [[brotatotes (Python)]](https://github.com/brotatotes/myStuff/blob/master/Fibonacci_Sequence.py)[[mandliya (C++)]](https://github.com/mandliya/practice/blob/master/fib.cpp) [[Silverneo (Python)]](https://github.com/Silverneo/pylearn/blob/master/Fibonacci.py) [[desertwebdesigns (Python)]](https://bitbucket.org/desertwebdesigns/learn_python/src/master/Numbers/fibonacci.py) [[aysark (Java)]](https://github.com/aysark/Review/blob/master/Projects/src/FibonnacciSeq.java)

**Binary to Decimal and Back Converter** - Develop a converter to convert a decimal number to binary or a binary number to its decimal equivalent. [[Drhealsgood (Python)]](https://github.com/Drhealsgood/miniprojects/blob/master/number_projects/conversion/conversions.py) [[petehuang (Ruby)]](https://github.com/petehuang/Projects/blob/master/Numbers/binary_to_decimal.rb) [[hx1997 (C)]](https://github.com/hx1997/Projects/blob/master/Numbers/binary_decimal.c) [[desertwebdesigns (Python)]](https://bitbucket.org/desertwebdesigns/learn_python/src/master/Numbers/binary_decimal_convert.py) [[vinaynikhil313 (Java)]](https://github.com/vinaynikhil313/Projects-Solutions/blob/master/BinaryDecimal.java) [[mukul13 (C)]](https://github.com/mukul13/poker/blob/master/Binary%20to%20decimal%20and%20Back%20Converter.c) [[francis36012 (C++)]](https://github.com/francis36012/karan-projects/blob/master/src/numbers/binBaseConv.cpp) [[hkuchampudi (Java)]](https://github.com/hkuchampudi/MegaProject_Solutions/blob/master/Numbers/binary_decimal_conversion.java)

[[mandliya(c++)]](https://github.com/mandliya/short-fun-projects/blob/master/conversion/conversion.cpp)

**Unit Converter (temp, currency, volume, mass and more)** - Converts various units between one another. The user enters the type of unit being entered, the type of unit they want to convert to and then the value. The program will then make the conversion. [[Drhealsgood (Python)]](https://github.com/Drhealsgood/miniprojects/blob/master/number_projects/conversion/conversions.py) [[desertwebdesigns (Python)]](https://bitbucket.org/desertwebdesigns/learn_python/src/master/Numbers/unit_convert.py) [[kurokuriboh (Java)]](https://github.com/kurokuriboh/Mega_Project_Solutions/tree/master/Numbers/Unit%20Converter)

**Sort Excel/CSV File Utility** - Reads a file of records, sorts them, and then writes them back to the file. Allow the user to choose various sort style and sorting based on a particular field. [[vishwanath79 (Python)]](https://github.com/vishwanath79/ExcelSorter/blob/master/ExcelSorter.py)

**Create Zip File Maker** - The user enters various files from different directories and the program zips them up into a zip file. *Optional: Apply actual compression to the files. Start with Huffman Algorithm.* [[averageprogrammer (Java)]](https://github.com/averageprogrammer/Zip_Up)

**PDF Generator** - An application which can read in a text file, html file or some other file and generates a PDF file out of it. Great for a web based service where the user uploads the file and the program returns a PDF of the file. *Optional: Deploy on GAE or Heroku if possible.*

[[tushar-rishav (Python)]](https://github.com/tushar-rishav/code2pdf)