# Need help in MatLab, I haven't used this program in a while

• MATLAB
• s4orce
In summary, the conversation is about needing help with solving linear equations in MatLab after not using the program for a while. The solution is to define matrices and use them to solve the equations. The website http://www.kluid.com/ and http://clipper.lehigh.edu/engr1/notes/MATLABsystemsSolution.htm are recommended resources for using MatLab.

#### s4orce

Need help in MatLab, I haven't used this program in a while...

1. 7u+3v+2w-x+7y-2z=1
3u+9c+1w-2x-9y+5z=7
5u+7v+3w-2x+7y+z=-5
2u+1v+9w-2x-7y-6z=14
9u+1v-8w+2x-7y+3z=22
u+2v+3w+4x+5y+6z=69

Solve for u,c,w,x,y,z using MatLab

I know it is solving linear equations using matrices but how can I do this in MatLab language?

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When using matlab, define matrices as follows:

G = [ Row1_Element1, Row1_element2, Row1_Element 3; Row2_Element1, Row2_Element2, Row2_Element3] etc...

Then define another matrix to hold your values to the right of the = sign.

http://clipper.lehigh.edu/engr1/notes/MATLABsystemsSolution.htm" [Broken]

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## 1. How do I get started with MatLab if I haven't used it in a while?

To get started with MatLab, you can begin by reviewing the basic commands and functions. You can also refer to online tutorials or the official MatLab documentation for guidance. Additionally, you can join online forums or communities to ask for help and advice from other users.

## 2. How do I refresh my knowledge of MatLab?

If you haven't used MatLab in a while, it may be helpful to review some of the basic concepts and commands. You can also practice by working on simple projects or exercises to refresh your memory and improve your skills.

## 3. Is there a specific version of MatLab I should use?

It is recommended to use the latest version of MatLab to ensure you have access to all the latest features and updates. However, if you have an older version, you can still use it, but some functions or commands may not be available.

## 4. How can I troubleshoot errors in my MatLab code?

If you encounter errors in your MatLab code, try to break down your code into smaller sections and test each section separately. This can help you identify where the error is occurring. You can also refer to the error message for more information and search online for solutions or ask for help from the MatLab community.

## 5. Can I use MatLab for data analysis and visualization?

Yes, MatLab is commonly used for data analysis and visualization. It has a variety of tools and functions that can help you analyze and visualize data in different formats. You can also use MatLab to create custom plots and graphs to visualize your data in a meaningful way.