MATLAB tutorials class 1: Environmental setup and layout configuration in MATLAB

            Hai... We are going to discuss the environmental setup in MATLAB in this post. We need to know who invented the MATLAB tool before going to see the basics first. He's Cleve Moler. In 1981, MATLAB was originally designed by Cleve Moler as a calculator function with 71 reserved commands. Matlab wasn't used as a programming language at that time. TABLE 1 represents that 71 reserved command.

Table 1. Reserved command for MATLAB version 1981

ABS	ATAN	BASE	CHAR	CHOP	CHOP	COND	CONJ
COS	DET	DIAG	DIAR	DISP	EIG	EPS	EXEC
EXP	EYE	FLOP	HESS	HILB	IMAG	INV	ORTH
LINE	LOAD	LOG	LU	MAGI	NORM	ONES	RANK
PINV	PLOT	POLY	PRIN	PROD	QR	RAND	SCHU
RAT	RCON	REAL	ROOT	ROUN	RREF	SAVE	USER
SIN	SIZE	SQRT	SUM	SVD	TRIL	TRIU	LONG
CLEA	ELSE	END	EXIT	FOR	HELP	IF
RETU	SEMI	SHOR	WHAT	WHIL	WHO	WHY

With the aid of engineers and scientists, the MATLAB edition is revised every year. 2020b is the updated version of MATLAB. 

Click here to download MATLAB 2020b Version for windows

Now in this post, We are going to discuss the environmental setup of MATLAB. If you were opening MATLAB for the first time it may show the default view. The default view will look like the one shown in figure 1.

Figure 1. The default layout of MATLAB

We now see one by one MATLAB environmental setup and layout configuration.

1. How do I show the command history window in Matlab?

1. Go to the layout.
2. Click command history.
3. Select "Docked".

2. How do I close the command history window in Matlab?

1. Go to the layout.
2. Click command history.
3. Select "Closed".

3. What is the current folder in MATLAB?

        While opening Matlab for the first time, the current folder indicates the C directory. Maximum it shows the directory like 'C:\Users\Admin\Documents\MATLAB\Examples\R2019a’. Which means that the code file is saved at that particular location. Generally, a new user saves all the MATLAB code with a different name on the C drive. But it's not a good practice. Because it might confuse programmers while searching for programs. It is good practice to create a separate folder for each program, and you can also choose other directories to save the program, do not prefer a desktop and a C drive. 

4. How to enable/disable current folder/workspace/Toolstrip/Panel titles in MATLAB?

1. Go to the layout   
2. There are current folder/workspace/Toolstrip/Panel titles in this 'show' portion, which can be enabled and disabled by clicking on.

5. How to open the script as a separate window or how to embed script in one window

        To open a script by click 'New script' or Ctrl+N.

To open the script as a separate window

1. Go to top of editor--> Right-click --> undock (figure 2)

To embed script in one window

1. At the top left corner --> click the down arrow -->click dock editor (figure 3)

6. What is the purpose of Command History in MATLAB?

        For beginners, Command History is really beneficial. We can see the previously executed sequence of programs in the command history.

7. What is the purpose of the workspace in MATLAB?

    All variables and variable values are present in the workspace. We can see the value of each variable in the workspace after executing the code.

8. How to fix 'OutOfMemoryError' in MATLAB?

1. Go to preference--> click general-->click java heap memory--> increase the java heap memory (figure 4).  

Figure 2. To open script as separate window

Figure 3. To embed script in one window

Figure 4. Fixing out of memory error in MATLAB

Reference:

Thanks to MATLAB Documentation

We have discussed the basic environmental layout configuration for MATLAB so far. We will see the matrix and array creation in my next post.

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