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[DOC File]MATLAB NOTES FOR GEOPHYSICS
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Matlab will be ready to use when the computer displays two right brackets (>>). ... In the last line, the scalar mr is subtracted from each value in the matrix r. The weight, w, multiplies each value in the matrix r-mr. ... You could check your understanding of the conv command with these series.
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Example -- Writing an M-FileThe following example shows ...
Select New in the MATLAB File menu. Select M-File. This opens a new M-file in the editor. In the M-file, enter the following two lines of code: X3=X1+X2. Save the M-file in a directory on the MATLAB path under the name “sumX1X2”. To check that the M-file you need first to set X1 and X2 certain numbers, for example, X1=3 and X2=5. Then ...
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[DOC File]MATLAB NOTES FOR GEOPHYSICS
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Matlab is a wonderful tool for geophysical computation, data analysis and display. ... In the last line, the scalar mr is subtracted from each value in the matrix r. ... You check the Matlab internal documentation for details of looping with a for statement. I will call this brute force looping, because we typically just want to loop over the ...
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[DOC File]Stability Analysis for VAR systems
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Given an (nxn) square matrix A, we are looking for a scalar and a vector such that then is an eigenvalues (or characteristic value or latent root) of A. Then there will be up to n eigenvalues, which will give up to n linearly independent associated eigenvectors such that . or . For there to be a nontrivial solution, the matrix must be singular.
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[DOC File]LAB #1
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However, if we treat a scalar as a 1x1 matrix, MATLAB resembles a calculator. Table 2 shows the basic math operators. Table 3 lists elementary math functions. The rules of precedence are given below: 1. Expressions are evaluated from left to right; ... To check all variables currently defined in your workspace, type: » who You can save ...
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[DOC File]WHAT FOLLOWS IS A TUTORIAL MATLAB SCRIPT …
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% A MATLAB command is any command that can be executed % on the MATLAB Command Window. % % A MATLAB script file is a file containing MATLAB commands. % Script files can have any name as long as it ends in .m. echo on % These examples show use of vectors and the find function. help find % Example 1 % This example shows % 1. definition of a ...
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[DOC File]The MATLAB Notebook v1.0
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To test the definitness of this matrix we can check the eigenvalues. If the eigenvalues are all positive, the Hessian is positive definite, which guarantees a strong minimum. If we evaluate the Hessian at x1=[-0.42 0.42]T, we find . The eigenvalues are the solution of the …
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[DOC File]The MATLAB Notebook v1.5.2 - University Of Maryland
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Proposition 2.8: The square matrix A is a scalar multiple of an orthogonal matrix if and only if AAT is a positive scalar multiple of the identity matrix. Proof: If A=cU with U orthogonal, then AAT=c2UUT=c^2I. If AAT=c2I (any positive number is a square of a positive number), and we set U=(1/c)A. Then UUT=I , so that U is orthogonal and A=cU.
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[DOCX File]MATLAB Questions and Answers – Input and Output
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Answer: bExplanation: If one operand is a scalar and the other is not, then MATLAB applies the scalar to every element of the other operand. This property is known as scalar expansion because the scalar expands into an array of the same size as the other input, then the operation executes as …
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[DOC File]Matrices
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oratory – says it all: Matlab was designed from the get-go to work with matrices. It even treats individual numbers as a special type of matrix termed a scalar. Consequently, Matlab is demonstrably faster at working with matrix-based models than comparable technical …
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Matlab check if scalar