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fengsen huang


Active since 2018

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Determine the deflected shape, and all moments,shears,and axial loads in the structure.
Use CALFEM toolbox to analyse the bar and beam truss as shown in the attached figure. The beam elements forming the roof are o...

6 years ago | 0 answers | 0

0

answers

Question


How can I fit an exponential curve?
Below is an example of finding a fit with only one term of exponential term but I dont know how to find the fit of the curve whe...

6 years ago | 3 answers | 0

3

answers

Question


How can I find a fit for my data?
phi = [ones(size(x2)),x2,x2.^2,x2.^3,x2.^4]; aa = phi\y2; yfit = phi*aa; plot(x2,y2,'bx',x2,yfit,'k-') grid on s=sprintf('...

6 years ago | 1 answer | 0

1

answer

Question


Using Delaunay triangulation to approximate the area
Hi, I try to use delaunay triangulation but it also connected the boundary point As you an see the X shape, thats what I wa...

6 years ago | 1 answer | 0

1

answer

Question


How can I generate random numbers to plot my graph?
x = randi([-50,50],1000,1); y = randi([-50,50],1000,1); So I got given a p-code file where I try out points and see if the a...

6 years ago | 1 answer | 0

1

answer

Question


How can I find a fit to my data points and using triangulation to approximate the planar area?
I got these data points, I want to approx the planar area of the shape. I am thinking of finding a fit then approxmate from th...

6 years ago | 4 answers | 1

4

answers

Question


How to find Missing data and insert Nan
I have recorded data for 30 days and and the time interval for recording were 30 minutes which the first 30 minutes of day one ...

7 years ago | 2 answers | 0

2

answers

Question


So I need to sort a time data out. First I have a column of data e.g 24401 means 244th days and 01 means the first 30 minutes. So in one day I have 48 data and I have a month full of time. How can I convert the time into hours To show on graph easier
24401 means 244th days and the first 30 minutes of the day. 24448 means 244th days and the 24th hours So it goes up by 30...

7 years ago | 1 answer | 0

1

answer