| 单词 | radius of convergence |
| 释义 | radius of convergence [`rād·ē·ǝs ǝv kǝn`vǝr·jǝns] MATHEMATICS The positive real number corresponding to a power series expansion about some number a with the property that if x - a has absolute value less than this number the power series converges at x, and if x - a has absolute value greater than this number the power series diverges at x. |
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