2. Interacting With MATLAB

2.1 Using MATLAB’s windows

2.2 Using the Command window

2.3 Writing tiny programs in the Command window

2.4 Allowing or suppressing outputs by omitting or including end-of-line semi-colons

2.5 Editing, saving, and running program scripts (.m files)

2.6 Running and debugging programs

2.7 Keeping a diary

2.8 Practicing interacting with MATLAB

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2.3 Writing tiny programs in the command window

Code 2.3.1:

A = 2

Output 2.3.1:

A =

Code 2.3.2:

2 = A

Output 2.3.2:

??? 2 = A

Error: The expression to the left of the equals sign is not a valid target for an assignment.

Code 2.3.3:

Output 2.3.3:

A =

Code 2.3.4:

Output 2.3.4:

??? Undefined function or variable 'a'.

Code 2.3.5:

a = 3

Output 2.3.5:

a =

Code 2.3.6:

My_Difference = a - A

Output 2.3.6:

My_Difference =

Code 2.3.7:

for = 4

Output 2.3.7:

??? for = 4;

Error: The expression to the left of the equals sign is not a valid target for an assignment.

Code 2.3.8:

a + A

Output 2.3.8:

ans =

Code 2.3.9:

ans

Output 2.3.9:

ans =

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2.4 Allowing or suppressing outputs by omitting or including end-of-line semicolons

Code 2.4.1:

My_Difference;

Output 2.4.1:

Code 2.4.2:

My_Difference_2 = A - My_Difference;

Output 2.4.2:

Code 2.4.3:

My_Difference_2

Output 2.4.3:

My_Difference_2 =

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2.5 Editing, Saving, and Running MATLAB Programs

Code 2.5.1:

% My_Program_01

% A program to add two numbers called X and Y.

X = 10;

Y = 12;

Z = X + Y

% end of program

Output 2.5.2:

Z =

Code 2.5.1:

% Ellipsis_Illustration

Method_1_Score_1 = 899;

Method_2_Score_1 = 1286;

Method_1_Score_2 = 1018;

Method_2_Score_2 = 1344;

Method_1_Score_3 = 1167;

Method_2_Score_3 = 1389;

Summed_Differences_Between_Method_2_and_Method_1_Scores = ...

Method_2_Score_1 - Method_1_Score_1 + ...

Method_2_Score_2 - Method_2_Score_2 + ...

Method_2_Score_3 - Method_1_Score_3

Output 2.5.2:

Summed_Differences_Between_Method_2_and_Method_1_Scores =

609