thumb|Room view - Deltar analogue computer at the DIV of Rijkswaterstaat in 1984 thumb|The Deltar (27 January 1972) thumb|Layout of the Deltar.1. Analog river sections2. Peripheral equipment (Punched tape)3. Operator controls4. Measuring controls5. Analog output (recorders)6. Digital output (punched tape)7. Design table (configuration of river setup)8. Wind generator. thumb|The connection table of the Deltar for the construction of river configurations
thumb|Room view - Deltar analogue computer at the DIV of Rijkswaterstaat in 1984 thumb|The Deltar (27 January 1972) thumb|Layout of the Deltar.1. Analog river sections2. Peripheral equipment (Punched tape)3. Operator controls4. Measuring controls5. Analog output (recorders)6. Digital output (punched tape)7. Design table (configuration of river setup)8. Wind generator. thumb|The connection table of the Deltar for the construction of river configurations
The Deltar (, English: Delta Tide Analogue Calculator) was an analogue computer used in the design and execution of the Delta Works from 1960 to 1984. Originated by Johan van Veen, who also built the initial prototypes between 1944 and 1946, its development was continued by J.C. Schönfeld and C.M. Verhagen after van Veen's death in 1959.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).