英语词汇“triangular numbers”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	triangular numbers
释义	triangular numbers noun plural : the successive sums n(n + 1)/2 where n = 1, 2, 3, ... of the first n natural numbers 1, 3, 6, 10, 15, … representable by dots arranged in triangles
随便看	ellagic acid ellagitannin elleck eller ellestadite elliot's elliot's pheasant ellipse pyrrolidone pyrrolidyl pyrroline pyrrolo- pyrrolo pyrrolyl pyrrophyta pyrroporphyrin pyrryl pyrula pyrularia pyrus pyruv pyruv- pyruvaldehyde pyruvate pyruvic

英语词典包含332784条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。