RAPTOR is a flowchart-based programming environment, designed specifically to help students visualize their algorithms and avoid syntactic baggage. RAPTOR programs are created visually and executed visually by tracing the execution through the flowchart. Required syntax is kept to a minimum. Students prefer using flowcharts to express their algorithms, and are more successful creating algorithms using RAPTOR than using a traditional language or writing flowcharts without RAPTOR.
Are you interested in running RAPTOR on Chromebooks, iPads, or just in a browser? Check out the pre-release here!. This is NOT fully tested. Send feedback via
A Multiplatform version of RAPTOR is now available for Windows, Mac and Linux built on top of [Avalonia]! See the downloads section below. Uses fonts from Noto Sans CJK for internationalization. Key differences:
Figure 1 RAPTOR for Windows
Figure 2 RAPTOR Avalonia
Papers on RAPTOR application:
RAPTOR referenced in following books or publications:
 |
 |
 |
Next time you watch Young Sheldon , remember that every pixel you see was touched, at some point, by code that lives in the same family as FFmpeg. It’s the ultimate invisible cast member.
ffmpeg -i s03e09_clip.mkv \ -vf "eq=brightness=0.05:contrast=1.1:saturation=0.7, \ drawtext=fontfile=/path/to/math_font.ttf:text='E=mc^2':x=50:y=50:fontsize=24:fontcolor=white, \ drawtext=text='P=NP?':x=w-200:y=h-100:fontsize=20:fontcolor=cyan" \ -c:a copy sheldon_vision.mkv
December 5, 2019 Title: The Politically Incorrect Proposition
While there is no canonical "FFmpeg" scene in the script—as the show is set in the late 1980s and FFmpeg was not released until 2000—the term is frequently associated with this episode in digital media circles. Users often utilize FFmpeg, a powerful command-line tool, to process, transcode, or extract high-quality clips from this specific episode for fan edits or archival purposes. Popular "Pieces" to Extract via FFmpeg
Whether you are a video archivist preserving the episode for decades, a fan making a meme of Missy’s fastball, or a student studying CBS’s encoding parameters, FFmpeg is the silent workhorse. And somewhere, in an alternate universe, a 10-year-old Sheldon Cooper is writing a bash script to optimize his family’s home video collection, complaining that "Meemaw’s framerate is mathematically unacceptable."
Young Sheldon S03E09 originally aired in 1080p at ~5-8 Mbps (H.264). An archivist with a large library might compress it further to H.265/HEVC, saving 50% disk space with similar perceptual quality.
For more FFmpeg commands or Young Sheldon trivia, consult the FFmpeg documentation (or Dr. John Sturgis’s physics lab).
There is a poetic irony in pairing Sheldon Cooper with FFmpeg. Sheldon loves rules, efficiency, logic, and precision—and hates ambiguity, inefficiency, and "lossy" human communication.
Next time you watch Young Sheldon , remember that every pixel you see was touched, at some point, by code that lives in the same family as FFmpeg. It’s the ultimate invisible cast member.
ffmpeg -i s03e09_clip.mkv \ -vf "eq=brightness=0.05:contrast=1.1:saturation=0.7, \ drawtext=fontfile=/path/to/math_font.ttf:text='E=mc^2':x=50:y=50:fontsize=24:fontcolor=white, \ drawtext=text='P=NP?':x=w-200:y=h-100:fontsize=20:fontcolor=cyan" \ -c:a copy sheldon_vision.mkv
December 5, 2019 Title: The Politically Incorrect Proposition young sheldon s03e09 ffmpeg
While there is no canonical "FFmpeg" scene in the script—as the show is set in the late 1980s and FFmpeg was not released until 2000—the term is frequently associated with this episode in digital media circles. Users often utilize FFmpeg, a powerful command-line tool, to process, transcode, or extract high-quality clips from this specific episode for fan edits or archival purposes. Popular "Pieces" to Extract via FFmpeg
Whether you are a video archivist preserving the episode for decades, a fan making a meme of Missy’s fastball, or a student studying CBS’s encoding parameters, FFmpeg is the silent workhorse. And somewhere, in an alternate universe, a 10-year-old Sheldon Cooper is writing a bash script to optimize his family’s home video collection, complaining that "Meemaw’s framerate is mathematically unacceptable." Next time you watch Young Sheldon , remember
Young Sheldon S03E09 originally aired in 1080p at ~5-8 Mbps (H.264). An archivist with a large library might compress it further to H.265/HEVC, saving 50% disk space with similar perceptual quality.
For more FFmpeg commands or Young Sheldon trivia, consult the FFmpeg documentation (or Dr. John Sturgis’s physics lab). Users often utilize FFmpeg, a powerful command-line tool,
There is a poetic irony in pairing Sheldon Cooper with FFmpeg. Sheldon loves rules, efficiency, logic, and precision—and hates ambiguity, inefficiency, and "lossy" human communication.
Do you want more older versions? Check out older versions of RAPTOR here
Did you know RAPTOR has modes? By default, you start in Novice mode. Novice mode has a single global namespace for variables. Intermediate mode allows you to create procedures that have their own scope (introducing the notion of parameter passing and supports recursion). Object-Oriented mode is new (in the Summer 2009 version)
RAPTOR is freely distributed as a service to the CS education community. RAPTOR was originally developed by and for the US Air Force Academy, but its use has spread and RAPTOR is now used for CS education in over 30 countries on at least 4 continents. Martin Carlisle is the primary maintainer, and is a professor at Texas A&M University.
Below handouts are by Elizabeth Drake, edited from Appendix D of her book, Prelude to Programming: Concepts and Design, 5th Edition, by Elizabeth Drake and Stewart Venit, Addison-Wesley, 2011. Linked here with author's permission.
Comments, suggestions, and bug reports are welcome. If you have a comment, suggestion or bug report, send an email to .
David Cox has put together a user forum at http://raptorflowchart.freeforums.org. This provides a place for users to exchange ideas, how tos, etc. Note however, that feedback for the author should be sent by email rather than posting on this forum.
Randy Bower has some YouTube tutorials at http://www.youtube.com/user/RandallBower. You can also search YouTube for "RAPTOR flowchart".
The UML designer is based on NClass, an open-source UML Class Designer. NClass is licensed under the GNU General Public License. The rest of RAPTOR, by US Air Force policy, is public domain. Source is found here. RAPTOR is written in a combination of A# and C#. Unfortunately, I don't have the time to provide support on compilation issues