What was the title of the paper Ada Lovelace translated that included her extensive notes?

The title of the paper Ada Lovelace translated was “Sketch of the Analytical Engine.”

The original article was written in French by Luigi Federico Menabrea, an Italian engineer who had attended a lecture by Charles Babbage about the proposed Analytical Engine. Menabrea’s article appeared in 1842, and Charles Wheatstone later asked Ada to translate it into English.

Ada worked on the translation during 1842 and 1843, but she did far more than convert the text from one language to another. She added seven substantial notes, labelled A through G, which were about three times longer than the translated article itself. These notes explained the machine’s capabilities and distinguished the Analytical Engine from Babbage’s earlier Difference Engine.

The most famous addition was Note G, which described a method for calculating Bernoulli numbers. It is often called the first published computer program, although Babbage had written earlier unpublished programs for the Engine. Ada’s notes also explored how machines might manipulate symbols, music, and other forms of information—not merely perform arithmetic.