Changes

He said it was between 223/71 and 22/7. This is ten times better than the Egyptian and Babylonian values: within 0.04% of <big><math>\pi</math></big>.

He said it was between 223/71 and 22/7. This is ten times better than the Egyptian and Babylonian values: within 0.04% of <big><math>\pi</math></big>.

In 1873, Abraham Shanks spent twenty years calculating <big><math>\pi</math></big> to 707 places, but made a mistake in his calculation and only 527 of them were correct. When electronic computers were developed, <big><math>\pi</math></big> was soon calculated to tens of thousands, millions, and billions of places. As of 2002, the record is held by Yasumasa Kanada of Tokyo University at 1,241,100,000,000 digits.{{fact}} That result was never printed out.

In 1873, Abraham Shanks spent twenty years calculating <big><math>\pi</math></big> to 707 places, but made a mistake in his calculation and only 527 of them were correct. When electronic computers were developed, <big><math>\pi</math></big> was soon calculated to tens of thousands, millions, and billions of places. As of 2002, the record is held by Yasumasa Kanada of Tokyo University at 1,241,100,000,000 digits.<ref>http://www.super-computing.org/pi_current.html</ref> That result was never printed out.

==Pi in mathematics==

==Pi in mathematics==