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Today - Professor Gareth Roberts: 'Pi is Welsh' - 蜜芽传媒 Sounds

Today - Professor Gareth Roberts: 'Pi is Welsh' - 蜜芽传媒 Sounds

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Professor Gareth Roberts: 'Pi is Welsh'Professor Gareth Roberts: 'Pi is Welsh'

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Welshman William Jones was the first person to use Pi in 1706.

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Professor Gareth Roberts: 'Pi is Welsh'
Welshman William Jones was the first person to use Pi in 1706.
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