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Dingyu Xue


Northeastern Univ

Last seen: 2 månader ago Active since 2002

Professor, Control Engineering Faculty of Information Science and Engineering Professional Interests: control theory, simulation, MATLAB in education

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FOTF Toolbox
FOTF Toolbox for fractional-order systems

9 månader ago | 57 downloads |

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Is this a bug in double precision data type?
Try this n=7; eye(n)*inf+ones(n) I got ans = Inf NaN NaN NaN NaN NaN NaN NaN Inf NaN NaN NaN ...

mer än 3 år ago | 1 answer | 0

1

answer

Question


Is it possible to convert the whole Simulink model into a state space one?
Dear friends In fact I am thinking of simulate a system, whose terminal information at t_k is known, and the information at t_0...

mer än 3 år ago | 1 answer | 0

1

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Question


an error in new versions? triognometric function of A*t
Please run the following code in MATLAB R2017a A1=simplify(A1), A2=simplify(A2) A=[-7,2,0,-1; 1,-4,2,1; 2,-1,-6,-1; -1,-...

mer än 5 år ago | 1 answer | 0

1

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Question


A bug im simplify in the new Symbolic Toolbox?
Dear developpers Recently I run my codes in my book in the new versions of MATLAB if true A=[-7,2,0,-1; 1,-4,2,1; 2,-1,-6...

mer än 5 år ago | 2 answers | 0

2

answers

Question


problems in accuracy assessment
Dear friends I tried continued fractiona approximation to pi, and got the following rational approximation 124496998874578...

ungefär 8 år ago | 1 answer | 1

1

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Question


A possible bug in symbolic limit function regarding complex entities?
The code I tried >> syms z; F=1/(z-1)^2+3/(z-1)+5/(z+1i)+6/(z-1i)^2+1/(z-2)^2+1/(z-2) % original function, f1=(z...

ungefär 8 år ago | 0 answers | 1

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answers

Question


Problems with Simulink to eps
Dear colleagues Probably from MATLAB 2012b, the exporting of Simulink to eps file is changed. The following command is OK bor e...

mer än 9 år ago | 0 answers | 0

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answers

Submitted


OptimPID: an optimal PID controller design interface
OptimPID is a MATLAB based interface and it can be used to optimize PID parameters

ungefär 11 år ago | 10 downloads |

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Submitted


Feedback Control Systems
Companion Software

mer än 14 år ago | 14 downloads |

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Submitted


graphics_tools
A graphics toolkit, Graf_Tool() which can be used to process and edit graphics.

mer än 14 år ago | 1 download |

Submitted


CtrlLAB
CtrlLAB provides a graphical interface to perform feedback system analysis and design.

mer än 14 år ago | 13 downloads |

Submitted


Improved Algebra files
Comput roots and polynomial functions with high accuracy.

nästan 21 år ago | 1 download |