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Huichen Zhang


Active since 2016

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Question


curve fitting to step and impulse response
I am trying to curve fit a step response and an impulse response curve of a second order system. While the step response I know ...

mer än 5 år ago | 2 answers | 0

2

answers

Question


Calculate Standard Deviation on a Certain X Point
Hi! So now I have obtained a linear fit according to scatter plots of 10 data sets with different sizes. The data sets consis...

mer än 5 år ago | 0 answers | 0

0

answers

Question


Draw standardized residuals and least square fit on the same plot
I recently encountered this plot and I want to draw like this as well, this is a displacement vs time scatter plot, a linear fi...

mer än 5 år ago | 0 answers | 0

0

answers

Question


Increasing contour levels non-linearly
I am writing a CFD code. The output of the stream function contour shows this, <</matlabcentral/answers/uploaded_files/62809/...

ungefär 6 år ago | 1 answer | 0

1

answer

Question


Finding max and min value in a contour plot
Basically I am doing a contour plot for a 2D matrix. I want to find the exact value of the max and min value of the matrix. is ...

ungefär 6 år ago | 1 answer | 0

1

answer

Question


Make a plot using value from a certain line of matrix
Suppose I have a matrix of dimension 10x10. Now I want to use the value along the column 5 as Y axis, and use the index of rows ...

ungefär 6 år ago | 2 answers | 0

2

answers

Question


Solving Poisson type of equation, increasing tolerance requirement leads to no response
I am solving a poisson type of equation, and when I increase the tolerance requirement down to 10e-7, the command window stops r...

ungefär 6 år ago | 1 answer | 0

1

answer