MATLAB

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MATLAB

• The Language of Technical Computing

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BRIEF BACKGROUND

• MATLAB is a "Matrix Laboratory"
• For Students at Univ of New Mexico
• interactive
• easy input, output
• operations on a whole vector or matrix at once
• Slowly spread to other Univ and evolved.

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MATLAB ENVIROMENT
Command Window
Command History
File Listing
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Basics

• Naming variables
• Who command / Whos command
• Clear command
• Format long / Format short
• Format rat

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BUILT IN FUNCTIONS

• Matlab has built in function
• -
• Exp, abs, square roots, logs
• Sin, cos, tan, etc.

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MATRICES AND VECTORS

• Writing Vectors and Matrices
• A comma or space separates s
• A semicolon separates lines
• Magnitude
• Norm (A)
• Cross and Dot product
• Cross(A,B)
• Dot (A, B)

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MATRICES AND VECTORS

• Transposed A and Determinant
• A(I,j)
• Referencing elements of a Vector
• A(2)
• Referencing elements of a Matrix
• A(1,2)
• Columns or Rows
• A(. 2,3)
• Changing elements
• A(1,2)x

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SOLVING MATRICES

• RANK(a)
• Inverse inv(A)
• Gauss elmination (Row Reducing)
• Rref(A)

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PLOTTING AND GRAPHING

• Define x and y
• Plot (x,y)
• Xlabel(x), ylabel(y)

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MFILES

• Building functions
• Open up new window
• Function outputs, outputs, etc file_name
  inputs, inputs, etc
• Define variables
• Compute components
• write notes
• End function
• Recalling function
• file_name( input variables, input varibales,
  etc)
• Editing Functions
• ?
• Right click and fix

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PROJECTS

• Importing for graphing
• Functions
• Interia principles