parabola
parabola 英 [pəˈræbələ] 美 [pəˈræbələ]
n. 抛物线
名词复数:parabolas
- When a quadratic function is graphed, it forms a parabola, a u-shaped curve that has to meet certain technical mathematical requirements. Think of the narrow curve at the end of an oval and you can imagine a parabola.
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- n. 抛物线
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1. So, we should draw maybe this downward parabola.
我们可以画出这样的开口向下的抛物线。
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2. From this one, you would not expect it to behave like a parabola.
从这一次，你不会期待它，如抛物线般运动。
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3. So, we have a parabola going downwards in one direction,upwards in the other one.
得到的是在一个方向上开口向下,而在另外的一个方向开口向上的抛物线。
- parabola (n.) 1570s, from Modern Latin parabola, from Greek parabole "a comparison, parable," literally "a throwing beside," hence "a juxtaposition" (see parable), so called by Apollonius of Perga c. 210 B.C.E. because it is produced by "application" of a given area to a given straight line. It had a different sense in Pythagorean geometry. Related: Parabolic.
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