The story
From the letters X and Y used to denote the axes of a graph.
Etymology from Wiktionary, CC BY-SA 4.0.
X-Y recorder
Today it means: A device that plots a two-dimensional graph of the relationship between variables. Full definition →
Today it means: A device that plots a two-dimensional graph of the relationship between variables. Full definition →
From the letters X and Y used to denote the axes of a graph.
Etymology from Wiktionary, CC BY-SA 4.0.