Lecture 7 - Lecture 7 User-defined functions(Part 1 BMEn...

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10/19/2010 1 Lecture 7: User-defined functions (Part 1) BMEn 2401 Programming for Biomedical Engineers Rich Beck October 18, 2010 Today’s lecture Script M-file Review of MATLAB built-in functions User-defined functions 2
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10/19/2010 2 Script M-file A script file or a program is a sequence of MATLAB commands, written in an M-file. Generally, the output of the script file is shown in the command window. By using a script file, a program can be edited and executed multiple times. Variables created by a script file stay in the Workspace until they are deleted by the clear command. A script file can “call” (execute) a MATLAB built-in function or a user-defined function 3 Script file % This program converts temperature % in Celsius to Fahrenheit Temperature_C = . .. input('Enter the temperature in Celsius:'); Temperature_F = Temperature_C * 1.8 +32; disp ( 'The temperature in Fahrenheit is:' ) disp (Temperature_F) 4
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10/19/2010 3 MATLAB Functions OUTPUT = MATLABFunction (INPUT) MATLAB Function INPUT OUTPUT Inputs and outputs of a function can be any combination of scalars, arrays, and strings. 5 Functions Functions M-files that accept input arguments and return output arguments Perform specific tasks (ex. repetitive calculations) “Called” in a script file or other function To view MATLAB function M-files, from MATLAB Open b C:\Program Files\MATLAB\R2009b\toolbox\matlab Subfolders contain M-files to MATLAB built-in functions
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This note was uploaded on 11/10/2011 for the course BMEN 2051 taught by Professor S during the Fall '10 term at Minnesota.

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Lecture 7 - Lecture 7 User-defined functions(Part 1 BMEn...

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