# Cesar Cardenas

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**Feeds**

Question

equation code not getting right answer

Hello, I'm trying to code this expression, this is my attempt but I'm not getting the same answer/value, not sure what I'm doing...

6 maanden ago | 1 answer | 0

### 1

answerhow to code equation

@Star Strider The idea would be to reproduce the plot shown in the previous image. So, the same ranges could be used. Not surre ...

11 maanden ago | 0

Question

how to code equation

Hello, I'm trying to code this equation but I think it is not right. Not sure how to adjust the LHS to avoid errors. Any help wi...

11 maanden ago | 2 answers | 0

### 2

answersQuestion

ExB drift velocity code equation

Hello, I would like to know if there is a better or more elegant way to code this equation and how I could get a better result? ...

12 maanden ago | 1 answer | 0

### 1

answerQuestion

How to plot these results?

Hello, I would like to know if there could be any option to plot these? not really sure how to do it. Any help will be appreciat...

bijna een jaar ago | 1 answer | 0

### 1

answerQuestion

How to adjust reshape

Hello, I'm trying to run this code but I'm still errors with reshape, not siure how to fix it. Any help will be greatly apprecia...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

read data to plot

Hello, I'm trying to read the data in the zip file attached with this code but I'm getting errors, not sure how I could plot the...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

How to fix equation code error

I would like to know if I'm coding this equation correctly?? I'm getting a error. Any help will be appreciated. Thanks. nu ...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

Errors trying to get the right plots

I'm trying to get the plots shown in the enclosed image. Not sure how to fix the code. Attached the .txt data file. Any help wil...

meer dan een jaar ago | 0 answers | 0

### 0

answersQuestion

getting errors while trying to plot

I'm trying to plot this but I'm getting errors. Not sure how to fix them. Any help will be greatly appreciated. Thanks much. ...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

Reynolds stress plot error

I'm getting this error when trying to plot this: Error in BL_9 (line 15) R = (1./delta) * trapz(y, tau .* u - tau' .* u); % ...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

Falkner-Skan code

Hello, I would like to know how to include or implement this equation: tau = (mu/(2*delta_y))*(4*un,2-un,3) into this code:?...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

code is right but can not the a plot

Hello, I do not what the mistake is? I'm getting the first plot. However, I have not been able to get the second plot. Not sure ...

meer dan een jaar ago | 2 answers | 0

### 2

answersQuestion

Equation code and plots

Hello, just wanted to know if this code would be fine for this equation? and how I could get some plots and get some error resul...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

Thomas algorithm - tridiagonal matrix

Is there any other way to code and solve the tridiagonal matrix? the idea would be to try to get the plot shown. Matlab beginner...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

How to get complete curves in a plot?

Hello how can I get the plot shown based on the code below? I'm just getting two curves and would like to get the others. Any he...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

how to code equation

Nu = (0.032.*(Pr).^(1/3)).*((rho.*Uinf.*x/mu).^(1/2)).*(1 -(x0/x).^(3/4).^(-1/3); Hello, is this code right? not sure, any ...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

error with function ode45

Hello,I created this function and file but I'm getting this error: not sure what I'm doing wrong. Any help will be greatly appr...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

How can I get the exact result with this code?

Hi, I'm trying to integrate the expression shown. Just wondering how I could get the same exact result? or what am I doing wrong...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

how to code equation

I'm trying to code these equations. This is my attempt. I would like to plot Cf vs x/L, but x/L as I have it shows me an error.....

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

How to code equation

Hello, just wondering if this equation could be coded like this: Any feedback will be greatly appreciated. Thanks m = ...

meer dan een jaar ago | 4 answers | 0

### 4

answersQuestion

how to code and solve integral vector field

Hi, I do not really know how to code and solve this: Any help will be appreciated. Thanks.

bijna 2 jaar ago | 0 answers | 0

### 0

answersQuestion

how to generate plot

Hi, I trying to plot de, da, dr, and dT but I can not get any line or curve. I would like to know what could be my mistake or ...

bijna 2 jaar ago | 0 answers | 0

### 0

answersQuestion

how to code transfer function

Hi, I would like to know how to code and plot this tf: This in my attempt; d = (e^-(t*s)/t1*s + 1)*dc; not sure about it...

bijna 2 jaar ago | 2 answers | 0

### 2

answersQuestion

how to include variables for plotting

Hi, I have this function and script files. I would like to know how I could plot the control moments?? de, da, dr not sure how t...

bijna 2 jaar ago | 0 answers | 0

### 0

answersQuestion

how to obtain plots from a given function

Hi, not sure how to plot xd1, xd2,,,,,xd3,,,any help will be greatly appreciated. Thanks function xdot = EoMv2(t,x) globa...

bijna 2 jaar ago | 0 answers | 0

### 0

answersQuestion

Discrete - time system

Hello, How can add N = 100, N = 50 for length N as stated in the image below? this is my attempt but not sure how add this or m...

ongeveer 2 jaar ago | 0 answers | 0

### 0

answersQuestion

Gauss-Markov system from statistical steady-state

I would like to write this code in a different way??. I have made some small changes but not sure what other modification could ...

ongeveer 2 jaar ago | 0 answers | 0

### 0

answersQuestion

Least square magnitude solution

is this a right approach to calculate the least square magnitude x* to this problem? Any help will be greatly appreciated. Thank...

ongeveer 2 jaar ago | 1 answer | 0

### 1

answerQuestion

Least squared matrix error

is this a right approach to calculate the least squared error x* to this problem? this is what I'm getting: Warning: Matrix ...

ongeveer 2 jaar ago | 0 answers | 0