about error in stateflow

Question

Pham Van Dung 2012-10-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/50828-about-error-in-stateflow

dear,

when i implement stateflow in block to mult or add signals in stateflow, i have this error:

_Cannot solve algebraic loop involving 'SUMOFPRODUCT/Sumofproduct/Product1' because it consists of blocks that cannot be assigned algebraic variables, i.e., blocks with discrete-valued outputs, blocks with non-double or complex outputs, Stateflow blocks, or nonvirtual subsystems

Need for helping!

Best regards!

Pham van Dung

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Walter Roberson 2012-10-15

Please read the guide to tags and retag this question; see http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Azzi Abdelmalek 2012-10-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/50828-about-error-in-stateflow#answer_61983

编辑：Azzi Abdelmalek 2012-10-15

You have an algebraic loop means that in your model you have a feedback through a block which don't contain any delay, it's like you write y(n)=2*y(n)+1, which is not correct, you should write y(n+1)=2*y(n)+1. to correct insert before your feedback a unit delay block