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The mathematician William Jones first used the Greek letter pi in 1706. In 1707, the great mathematician Euler popularized it.
Any mathematician will use the number pi (and its symbol) sooner or later - it is a number used extensively in many different areas of mathematics.
Pi as a symbol was first used by the English mathematician William Jones. In 1706 he wrote that 3.14159=Euler, in 1737, used this symbol and it became the worlds standard symbol for pi after that.
Pi was first assigned as a symbol by mathematician William Jones in 1706.
English mathematician William Jones developed the symbol for Pi in 1706.William Jones