This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
SourceTransformationAutomaticDifferentiation. made this using en TikZ Beamer and en LaTeX The figure displays how source code transformation in en automatic differentiation could work Transferred from org en transfer was stated to be made by User JRGom Original uploader was Berland at org en Released into the public domain