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из канадского учебника, кстати, снова про "пи"
Elsewhere, the textbook asks whether it is possible to draw a circle with a circumference of exactly 33 cm.
“Common sense tells you can take a string with the length of 33 cm, make a circle of it, and this is your circle,” she said. Or, one can use a mathematical formula to calculate the radius and draw the circle from that, rounding decimals.
The textbook, however, states this is impossible: “[Pi] never terminates or repeats. So, the circumference will never be a whole number.”
Read more: https://web.archive.org/web/20120414142839/http://www.vancouversun.com/technology/Math+textbook+contains+errors+lecturer+says/6451024/story.html#ixzz4tH4uZ7pA
“Common sense tells you can take a string with the length of 33 cm, make a circle of it, and this is your circle,” she said. Or, one can use a mathematical formula to calculate the radius and draw the circle from that, rounding decimals.
The textbook, however, states this is impossible: “[Pi] never terminates or repeats. So, the circumference will never be a whole number.”
Read more: https://web.archive.org/web/20120414142839/http://www.vancouversun.com/technology/Math+textbook+contains+errors+lecturer+says/6451024/story.html#ixzz4tH4uZ7pA
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