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Forward elimination:
In forward elimination, we want to obtain a 0 in the a21 position. To accomplish this, we can alter the second line in the matrix by subtracting from it 2 * the first row.
In this way we would write this ERO as:
Now, placing it back in the matrix equation form:
It says that the second equation is now -2x2 = 2 therefore x2 = -1. Now put it into the first equation:
x1 + 2(-1) = 2, and hence x1 = 4.
This is known as the back-substitution.
Function cirarea - Anonymous functions: The function handle name is cirarea. The one argument is passed to the input argument radius. The body of the function is an expression
sane as above
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Algorithm for the function e: The algorithm for the function eoption is as shown: Use the menu function to show the 4 choices. Error-check (an error would take place
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Example of Gauss-jordan: For a 2×2 system, this would results and for a 3 × 3 system, Note that the resulting diagonal form does not involve the right-most col
Example of Interpolation and extrapolation: The MATLAB has a function to do this, known as polyfit. The function polyfit finds the coefficients of the polynomial of the partic
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Illustration of if - else statement: The one application of an if-else statement is to check for errors in the inputs to a script. For illustration, a former script prompted t
Example to change the line width from the default: For illustration, to change the line width from the default of 0.5 to 1.5: >> set(hl,'LineWidth',1.5) As long as the
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