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Dingyu Xue


Northeastern Univ

Last seen: 9 maanden 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

bijna 2 jaar ago | 123 downloads |

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Question


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 ...

bijna 5 jaar 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...

bijna 5 jaar ago | 1 answer | 0

1

answer

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,-...

meer dan 6 jaar 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...

meer dan 6 jaar ago | 2 answers | 0

2

answers

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

meer dan 9 jaar 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...

meer dan 9 jaar 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...

meer dan 10 jaar ago | 0 answers | 0

0

answers

Submitted


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

ongeveer 12 jaar ago | 11 downloads |

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Submitted


Feedback Control Systems
Companion Software

meer dan 15 jaar ago | 6 downloads |

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

meer dan 15 jaar ago | 3 downloads |

Submitted


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

meer dan 15 jaar ago | 2 downloads |

Submitted


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

bijna 22 jaar ago | 2 downloads |