单词	harmonic sequence
释义	harmonic sequence (harmonic progression) A sequence a1, a2, a3,…such that 1/a1, 1/a2, 1/a3,…is an arithmetic sequence. The most commonly occurring harmonic sequence is the sequence .
随便看	proof verification proper class proper divisor proper factor proper fraction proper map proper subset proper value proper vector proportion proportion proposition propositional logic pseudoinverse pseudometric pseudoprime pseudorandom numbers Ptolemy Ptolemy's Theorem public key cryptography pulley pure imaginary pure mathematics pure strategy PV

数学辞典收录了4151条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。