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**Content Feed**

Question

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...

10 months ago | 1 answer | 0

### 1

answerQuestion

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...

10 months ago | 1 answer | 0

### 1

answerQuestion

"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...

10 months ago | 0 answers | 0

### 0

answersQuestion

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...

10 months ago | 0 answers | 0

### 0

answersQuestion

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...

11 months ago | 1 answer | 0

### 1

answerQuestion

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 ...

12 months ago | 1 answer | 0

### 1

answerQuestion

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! ...

1 year ago | 1 answer | 0

### 1

answerQuestion

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...

1 year ago | 1 answer | 0

### 1

answerQuestion

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...

1 year ago | 1 answer | 0

### 1

answerQuestion

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...

1 year ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 2 answers | 0

### 2

answersQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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;...

2 years ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 2 answers | 0