摘要: desolve? EXAMPLES: sage: x = var('x') sage: y = function('y')(x) sage: desolve(diff(y,x) + y - 1, y) (_C + e^x)*e^(-x) sage: x = var('x') sage: y = fu 阅读全文
posted @ 2018-05-13 15:03 redfenglin 阅读(849) 评论(0) 推荐(0) 编辑