MATLAB Answers

Read data from .txt file

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Ashesh Choudhury
Ashesh Choudhury on 17 Oct 2020
Answered: Athul Prakash on 23 Oct 2020
The text file will contain two information.
  1. The number of equations.
  2. The augmented matrix.
I want to save the number of equations in a variable 'n' and the augmented matrix in a matrix 'A'. How can I do it? The input text file data will be for example:
3
4 2 3 6
5 6 7 8
3 6 7 9
So, I want to take input in my program from this text file. And assign: n=3 and A=[4 2 3 6; 5 6 7 8; 3 6 7 9].
Please help.

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Answers (1)

Athul Prakash
Athul Prakash on 23 Oct 2020
I recommend trying the 'Import Data' button on the Home tab in the Matlab toolstrip. After selecting your .txt file in the tool, you may interactively crop the data you need and save into a variable in your workspace.
There are multiple tools and options to import the data you mentioned - for an overview you may read this documentation page:
Hope it helps!

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