General Knowledge
Which Welsh mathematician introduced the equals sign?
- Robert Recorde
- William Jones
- John Dee
The answer is Robert Recorde. Recorde, in 1557 — 'no two things can be more equal'.
Robert Recorde was a Welsh physician and mathematician. He invented the equals sign (=) and also introduced the pre-existing plus (+) and minus (−) signs to English speakers in 1557.
Wikipedia · Robert Recorde