| 单词 | equality |
| 释义 | equality The property of having the same value. This is symbolised by =, and applies to numbers or algebraic expressions. If x and y are real numbers, x = y means that x and y are the same. If x and y are complex numbers, x = a + ib and y = c + id, where a,b,c and d are real, x = y if and only if a = c and b = d. If x and y are vectors, x = (x1, x2,…, xN) and y = (y1, y2,…, yN ), x = y if and only if x1 = y1, x2 = y2,…, and xN = yN. |
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