Sam's Math Club
初中数学竞赛(AMC 8, AMC 10, Mathcounts) 交流微信群 => WeChat Group 初中数学竞赛(AMC 8, AMC 10, Mathcounts) 交流微信群 => Topic started by: admin on March 10, 2018, 10:31:50 AM
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Boiling water
A physicist and a mathematician are given a task: to boil water in a tea pot.
They are both given a tea pot full of water.
So they both put it on a stove and boil it for 10 minutes.
Now the problem becomes more complicated: The tea pot filled with water half full is standing
on the stove. The task is the same.
PHYSICIST: turns on a fire and heats the water for 5 minutes.
MATHEMATICIAN: Fill the water to full and boil it for 10 minutes (the problem is reduced to the previous one that he has the experience and knows how to solve).
这个方法中文叫做化归法，非常重要。