Mark

Last seen: 3年弱前 | 2021 年からアクティブ

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質問

plot results with small value difference between each data
I calculated the convergence results with there a pair of plot. One is for the calculation value and the other is for the increm...

3年弱前 | 1 件の回答 | 0

1

回答

質問

Convert sym to double
I try to find out the DW (The last line of code I showed below). I used sym x y at the beginning because I need to differentiat...

3年弱前 | 1 件の回答 | 0

1

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質問

"much greater than (>>) " operator calculation
I have calculated C1, C2 and B1. And than I need to simplify the three equations with the condition of K1>> lamba1 (K1 much gre...

3年弱前 | 1 件の回答 | 0

1

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質問

solve second order ODE equation
I try to symbolic the function psi_m(y) and psi_m(x) and solve the equation b with matlab obe solver. The results should come ou...

3年弱前 | 0 件の回答 | 0

0

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質問

Set assumption on function and Solve differential equation
I try to solve the phi_m (y) equation by substituting Eq.(7.100) into Eq.(7.99) and below is my code but it did not come ou...

3年弱前 | 1 件の回答 | 0

1

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質問

solve unknown constants A, B and C
%% I try to calculate the three unknown constants A,B, and C based on the 1, 2, and 3 equation that I marked by pencil ...

約3年前 | 1 件の回答 | 0

1

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質問

use "for loop" to create pattern
I would like to know how to modify my "second for loop" to obtain the "a" result as below picture. Thank you very much! ...

3年以上前 | 1 件の回答 | 0

1

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質問

Cell calculation and for loop modification
I would like to input my "stacknumber" and input my "theta(45,-45,0 repectively)" and save my value in the cell which is calle...

3年以上前 | 1 件の回答 | 0

1

回答

質問

find the intersection of the four corner and trim the value out of the corner
I have used the four lines to plot the figure below. I would like to know how to find the intersection and trim the value out o...

3年以上前 | 1 件の回答 | 0

1

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質問

plot nonlinear equation in x y coordinate
clc clear syms x y SL_Ts=1800; SL_Cm=1400; ST_Ts=40; ST_Cm=230; SLT=100; k=((x^2/(SL_Ts^2))-((x*y)/(SL_Ts^2))+((y^2...

3年以上前 | 1 件の回答 | 0

1

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質問

Root finding and plotting
How do I find the three roots of " f " I got the plot of " f." And because the " f " and X asis has three intersections, it wo...

4年弱前 | 2 件の回答 | 0

2

回答

質問

How to substitute x and y with X and Y respectively and get the same result as Test1(last line of my code)
Below is my code. About the last line of my code, I would like to know how to substitute x and y with X and Y respectively and g...

4年弱前 | 1 件の回答 | 0

1

回答

質問

How do I get the combination of cell array "wmn" and set up the preallocation of "wmn"
Below is my code. In the last line of my code. Because "i" is variable, I would like to ask how to combine the wmn without usi...

4年弱前 | 1 件の回答 | 0

1

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質問

Does "fsolve" still avaliable for sloving the nonlinear equation?
I would like to slove the nonlinear equation above and I use matlab to code below but the command window showed: Undefined fun...

4年弱前 | 1 件の回答 | 0

1

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質問

How to use the result of mn matrix at each loop step to do the calculation of amn?
There are two matrix of mn in the for loop in my command window (Please see the code below) . The first matrix is mn= [1 1;1 3;...

4年弱前 | 1 件の回答 | 0

1

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質問

How to programming the matrix of mn ?
I would like to know how to coding the matrix with the following pattern? Could I use the "for" or ''while" loop or is there an...

4年弱前 | 2 件の回答 | 0

2

回答