phương trình vi phân

== Vietnamese == === Etymology === Sino-Vietnamese word from 方程 (“equation”) and 微分 (“differential”). === Pronunciation === (Hà Nội) IPA(key): [fɨəŋ˧˧ t͡ɕïŋ˨˩ vi˧˧ fən˧˧] (Huế) IPA(key): [fɨəŋ˧˧ ʈɨn˦˩ vɪj˧˧ fəŋ˧˧] (Saigon) IPA(key): [fɨəŋ˧˧ ʈɨn˨˩ vɪj˧˧ fəŋ˧˧] ~ [fɨəŋ˧˧ ʈɨn˨˩ jɪj˧˧ fəŋ˧˧] === Noun === phương trình vi phân (mathematics) differential equation