
Re: [線代] 一題工程數學

: 求救,謝謝大家!
E - LI' - RI = 0
=> I' = -(R/L)[I - E/R]
=> ln[I - E/R] = -(R/L)t + c
=> I - E/R = Aexp(-Rt/L)
=> I = (E/R)[1 - exp(-Rt/L)]
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