Let F(x1,x2)be a real-valued function defined on R^2 with partial derivatives
Fi=dF/dxi for i=1,2 .Suppose that variable v is implicitly defined as a
function of u by the equation F(u-v,u+v)=0 .find dv/du in terms if F1 and
F2
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 125.233.77.45
※ 編輯: jbsh 來自: 125.233.77.45 (06/25 14:53)