Input a repeating jacobian pattern in ode23tb

2 ビュー (過去 30 日間)
KostasK
KostasK 2020 年 11 月 27 日
Hi all,
I have been using ode23tb to solve a large system of about 1,312 differential equations where . I do not know the Jacobian of the system, however I know its sparcity pattern (which I know I can input to the solver via odeset), but also I know that there is a very specific pattern to the Jacobian. In specific, the Jacobian of the entire system of 1,312 equations is made out of repeating smaller Jacobians of dimensions 32 x 32 ( below) such that:
I know that by utilising this information, the Jacobian can potentially be calculated extremely fast. With that said, is there an option anywhere or a trick where I can include this useful information into the solver?

回答 (0 件)

カテゴリ

Help Center および File ExchangeOrdinary Differential Equations についてさらに検索

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by