英语词汇“strophoid”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	strophoid
释义	stro·phoid (strōfoid′) n. The curve traced out by points P and P′ which lie on lines through a fixed point A where the midpoint M of PP′ is on a fixed line and the absolute value \|PM\| = the absolute value \|P′M\| = the absolute value \|MO\|, where O is the projection of A onto that fixed line. [Greekstrophos, twisted cord (fromstrephein, to turn; see streb(h)- in the Appendix of Indo-European roots) + –OID.] strophoid The equation for this strophoid is y2 = x2(a + x)/(a - x).
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