MATLAB
Command History window
stores all commands that have been executed. Can execute a previous command by double-clicking the desired command.
diary off
suspends input to a diary file
Why should you not name a variable or m-file with the same name as a built-in function?
the built in function will become inaccessible
subarray
the name of the array followed by subscripts in parentheses indicating the row and column of the desired member.
lookfor <a>
tries to find possible functions with the desired keyword <a>
!
used to communicate with the computer's operating system. Any commands written after a ! will be treated as if they had been written at the computer's command prompt.
Figure window
window where graphics are shown in MATLAB. Usually appears as an undocked pop-up window
MATLAB arithmetic symbols
+, -, *, /, ^
3 most important kind of windows in MATLAB
1) The command window 2) The Edit window 3) Figure windows
two command-line oriented ways to get help
1) help 2) lookfor
pi
MATLAB keyword, contains the value of pi.
Do variables have to be declared?
No.
diary on
begins writing a diary file
Edit window
The window that pops up automatically when you open a new or existing m-file. Can also serve as a debugger.
array
a collection of data values organized into rows and columns and known by a single name.
script file
a file where a series of commands (a program) are stored. The entire file can be executed as a unit by writing its name in the command prompt
The fundamental unit of data in MATLAB is...
an array
M-file
another name for a script file. called so because they end with .m
Command Window
area in MATLAB where user can execute interactive commands or run programs. Contains the command prompt >>.
clf
clears current figure window
clc
clears the command window
diary filename
creates a diary file named filename that stores all the output on the command prompt.
clear all
deletes all current existing variables
clear var1 var2 ...
deletes variables var1 var2... from the workspace
which functionName
determines which function of a given name is being executed. Useful in case of an accidental name overwrite
whos
generates a list of all current variables, their size, and their class.
ctrl-C
how to terminate an execution in MATLAB. used to regain control after an infinite loop or other such issue.
How to type a command that is too long to type on a single line
include an ellipsis (...) at the end of the line. All statements on the next line will be considered part of that same line
help <b>
provides a help page explaining the use and syntax of the command <b>