Differences

This shows you the differences between two versions of the page.

--- matlab:introduction_to_matlab [2019/04/26 21:51] – [Comments] mithat
+++ matlab:introduction_to_matlab [2021/12/07 19:11] (current) – [Documenting functions] mithat
@@ Line 6: / Line 6: @@
 ===== What is it? =====
+  * A //high-level//, //interpreted// language and environment targeting scientific computing.
   * A freaking huge, feature filled graphing calculator
   * Comprehensive
@@ Line 47: / Line 48: @@
 ===== Comments =====
-  * Use a percent sign.
+  * Use the percent sign.
 <code matlab>
 % a single line comment
@@ Line 105: / Line 106: @@
 <code matlab>
 % separate matrix rows with ';'
 a = [1 2 3; 4 5 6; 7 8 9];
-c = [9 8 7; 6 5 4; 3 2 1];
+b = [9 8 7; 6 5 4; 3 2 1];
 </code>
@@ Line 112: / Line 114: @@
 <code matlab>
-% matrix multiplication
+r = 1.25 * a; % scalar multiplication
-r = a * b;
+r = a * b;    % matrix multiplication
+r = a .* b;   % elementwise multiplication
-% elementwise multiplication
+r = a ./ b;   % elementwise division
-r = a .* b;
-% elementwise division
-r = a ./ b;
 </code>
@@ Line 317: / Line 315: @@
 ===== With "main" function =====
   * Minimum syntax:
-<file matlab my_script.m>
+<file matlab main.m>
-function main
+function main()
   area1 = traparea(1, 2, 3);
   disp(area1);
@@ Line 345: / Line 343: @@
 ===== Documenting functions =====
   * First comment block after first line is used to [[https://www.mathworks.com/help/matlab/matlab_prog/add-help-for-your-program.html|document functions]].
-  * What user sees when she types ''help //function-name//''.
+  * What user sees when they type ''help //function-name//''.
     * Only with single-function m-files.
 <file matlab traparea.m>